Publications

• Journal publications
• Technical reports
• Presentations
• Stakeholder reports

Journal Publications

2024

• Dabravolskaj J, Patte KA, Yamamoto S, Leatherdale ST, Veugelers PJ, Maximova K (2024). Association Between Diet and Mental Health Outcomes in a Sample of 13,887 Adolescents in Canada. Prev Chronic Dis. http://dx.doi.org/10.5888/pcd21.240187
• Mitchell J, Magier MJ, Duncan MJ, Chaput JP, Carson V, Faulkner G, Belita E, Vanderloo LM, Riazi N, Laxer RE, Carsley S, Leatherdale ST, Patte KA (2024). Inequities in sleep duration and quality among adolescents in Canada. BMC Public Health. https://doi.org/10.1186/s12889-024-19974-w
• Were JM, Hunter S, Patte KA, Leatherdale ST, Pabayo R (2024). Income inequality and comorbid overweight/obesity and depression among a large sample of Canadian secondary school students: the mediator effect of social cohesion. Social Science and Medicine – Population Health. https://doi.org/10.1016/j.ssmph.2024.101710
• Benny C, Smith BT, Patte KA, Leatherdale ST, Pabayo R (2024). Public health unit engagement in school mental health programs and adolescent mental health during the COVID-19 pandemic: COMPASS, 2018–2022. Journal of Public Health. https://doi.org/10.1093/pubmed/fdae179
• Kostuch E, Bélanger R, Leatherdale ST, Cole AG (2024). Exploring the cross-sectional association between the strength of school vaping policies and student vaping behaviours using data from the 2021–2022 COMPASS Study. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-024-00919-0
• Chattha H, Duncan MJ, Riazi NA, Leatherdale ST, Patte KA (2024). Changes to Secondary School Physical Activity Programs and Policy after Emerging from COVID-19 Lockdowns. International Journal of Environmental Research and Public Health. https://doi.org/10.3390/ijerph21060788
• Battista K, Patte KA, Wade TJ, Cole A, Elton-Marshall T, Lucibello KM, Pickett W, Leatherdale ST (2024). Do sociodemographic risk profiles for adolescents engaging in weekly e-cigarette, cigarette, and dual product use differ? BMC Public Health. https://doi.org/10.1186/s12889-024-18813-2
• Gohari MR, Doggett A, Patte KA, Ferro MA, Dubin JA, Hilario C, Leatherdale ST (2024). Using random forest to identify correlates of depression symptoms among adolescents. Soc Psychiatry Psychiatr Epidemiol. https://doi.org/10.1007/s00127-024-02695-1
• Lucibello KM, Zhang Q, Leatherdale ST, Patte KA (2024). Changing eating to manage weight or shape: A cross-sectional and prospective study of the prevalence and correlates in a large Canadian adolescent cohort. Preventive Medicine. https://doi.org/10.1016/j.ypmed.2024.107987
• Duncan MJ, Kuzik N, Silva DAS, Bélanger RE, Carson V, Chaput J-P, Faulkner G, Ferro MA, Turcotte-Tremblay A-M, Leatherdale ST, Patte KA, Tremblay MS (2024). “Goldilocks days” for adolescent mental health: Movement behaviour combinations for well-being, anxiety and depression by gender. Mental Health and Physical Activity. https://doi.org/10.1016/j.mhpa.2023.100572
• Patel P, Patte KA, Storey K, Leatherdale ST, Pabayo R (2024). Exploring the association between income inequality and sleep in Canadian adolescents: A path analysis approach. National Sleep Foundation. https://doi.org/10.1016/j.sleh.2024.03.008
• Varatharajan T, Patte KA, de Groh M, Jiang Y, Leatherdale ST (2024). Exploring differences in substance use behaviours among gender minority and non-gender minority youth: a cross-sectional analysis of the COMPASS study. Health Promot Chronic Dis Prev Can. https://doi.org/10.24095/hpcdp.44.4.04 
• Gohari MR, Patte KA, Elton-Marshall T, Cole A, Turcotte-Tremblay A-M, Bélanger RE, Leatherdale ST (2024). The association between single and dual use of cannabis and alcohol and driving under the influence and riding with an impaired driver in a large sample of Canadian adolescents. Can J Public Health. https://doi.org/10.1080/15389588.2024.2342571
• Lucibello KM, Goldfield GS, Alberga AS, Leatherdale ST, Patte KA (2024). Exploring the association between internalized weight bias and mental health among Canadian adolescents. Pediatric Obesity. https://doi.org/10.1111/ijpo.13118 
• Lucibello KM, Gohari MR, Leatherdale ST, Patte KA (2024). Factors associated with prospective changes in weight control intentions among adolescents. Journal of Adolescence. https://doi.org/10.1002/jad.12307
• Buchan, MC, Richmond, SA, Skinner, K, Leatherdale ST (2024). Identifying latent classes of physical activity profiles over time among adolescents in Ontario, Canada. BMC Public Health. https://doi.org/10.1186/s12889-024-18280-9
• Patte K, Gohari MR, Lucibello KM, Bélanger RE, Farrell AH, Leatherdale ST (2024). A Prospective and Repeat Cross-Sectional Study of Bullying Victimization Among Adolescents From Before COVID-19 to the Two School Years Following the Pandemic Onset. Journal of School Violence. https://doi.org/10.1080/15388220.2024.2333504
• Poirier K, Gauvin L, Haddad S, Bélanger RE, Leatherdale ST, Turcotte-Tremblay A-M. (2024). Evolution of Sleep Duration and Screen Time Between 2018 and 2022 Among Canadian Adolescents: Evidence of Drifts Accompanying the COVID-19 Pandemic. Journal of Adolescent Health. S1054-139X(24)00004-1. DOI: 10.1016/j.jadohealth.2023.12.023
• Goddard JA, Pagnotta VF, Duncan MJ, Sudiyono M, Pickett W, Leatherdale ST, Patte KA (2024). A prospective study of financial worry, mental health changes and the moderating effect of social support among Canadian adolescents during the COVID-19 pandemic. Health Promot Chronic Dis Prev Can. 2023;44(3):101-11. https://doi.org/10.24095/hpcdp.44.3.04
• Duncan MJ, Belita E, Amores A, Riazi NA, Carsley S, Vanderloo LM, Carson V, Chaput J-P, Faulkner G, Leatherdale ST, Patte KA. (2024). Changes in breakfast and water consumption among adolescents in Canada: Examining the impact of COVID-19 in worsening inequity. BMC Nutrition, 10(1), 27. https://doi.org/10.1186/s40795-024-00831-3
• Magier MJ, Battista K, Butler A, Smith AK, Leatherdale, ST, Maginn D, Patte KA (2024). A Summary of Substance Use Programs in a Sample of Ontario Secondary Schools in the Years Surrounding Federal Cannabis Legalization. Canadian Journal of Addiction. https://doi.org/10.1097/CXA.0000000000000189
• Mott, H., Leatherdale, S. T., & Cole, A. G. (2024). Exploring the association between the proximity to and density around schools of retailers selling IQOS products and youth use of heated tobacco products: Evidence from the 2020-2021 COMPASS study. HPCDP Journal. https://doi.org/10.24095/hpcdp.44.1.01
• Patte KA, Battista K, Goddard J, Ferro J, Leatherdale ST (2024). Students’ reasons for being reluctant to seek help for mental health concerns in secondary schools. Cogent Mental Health. https://doi.org/10.1080/28324765.2023.2298918
• Patte KA, Gohari MR, Faulkner G, Bélanger RE, Leatherdale ST (2024). Inequitable Changes in School Connectedness During the Ongoing COVID-19 Pandemic in a Cohort of Canadian Adolescents. Journal of School Health. https://doi.org/10.1111/josh.13443
• Patte KA, Duncan MJ, Amores A, Belita E, Kocsis R, Riazi NA, Laxer R, Leatherdale, ST (2024). Inequities in dietary intake and eating behaviours among adolescents in Canada. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-024-00854-0

2023

• Gohari MR, Patte KA, MacKillop J, Waloszek A, Leatherdale ST (2023). An Examination of Bidirectional Associations Between Alcohol Use and Internalizing Symptoms Among Adolescents During the COVID-19 Pandemic. Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2023.10.026

• Leatherdale ST, Amores A, Bélanger RE, Battista K, Patte KA, Jiang Y (2023). Youth perception of difficulty accessing cannabis following cannabis legalization and during the early and ongoing stages of the COVID-19 pandemic: repeat cross-sectional and longitudinal data from the COMPASS study. Arch Public Health. https://doi.org/10.1186/s13690-023-01224-x

• Benny C, Senthilselvan A, Patte KA, Smith BT, Veugelers PJ, Leatherdale ST, Pabayo R (2023). Income inequality and mental health in adolescents during COVID-19, results from COMPASS 2018–2021. PLOS. https://doi.org/10.1371/journal.pone.0293195

• Doggett A, Chaurasia A, Chaput JP, Leatherdale ST (2023). Original quantitative research – Using classification and regression trees to model missingness in youth BMI, height and body mass data. HPCDP Journal. https://doi.org/10.24095/hpcdp.43.5.03

• Gohari MR, Patte KA, Ferro MA, Haddad S, Wade TJ, Bélanger RE, Romano I, Leatherdale ST (2023). Adolescents' Depression and Anxiety Symptoms During the COVID-19 Pandemic: Longitudinal Evidence from COMPASS. Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2023.07.024

• Lowe SAJ, Basnet S, Leatherdale ST, Patte KA, Pabayo R (2023). Inequality's on Tap: A Longitudinal Study of Area-Level Income Inequality and Alcohol Consumption Among Canadian Adolescents. Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2023.07.015

• Hunter S, Hilario C, Patte KA, Leatherdale ST, Pabayo R. (2023). Association Between Area-Level Income Inequality and Health-Related School Absenteeism: Evidence From the COMPASS Study. Journal of School Health. https://doi.org/10.1111/josh.13390

• Romano I, Patte KA, Groh MD, Jiang Y, Leatherdale ST. (2023). Perceptions of and adherence to early COVID-19-related restrictions and associations with substance use among youth in Canada. Health Promot Chronic Dis Prev Can. https://doi.org/10.24095/hpcdp.42.11/12.03

• Tandon S, Patte KA, Goldfield GS, Leatherdale ST, Chaput JP. (2023). Loneliness during COVID-19 and its association with eating habits and 24-hour movement behaviours in a sample of Canadian adolescents. Preventive Medicine Reports. https://doi.org/10.1016/j.pmedr.2023.102287

• Patte KA, Battista K, Ferro MA, Bélanger R, Wade TJ, Faulkner G, Pickett W, Riazi N, Michaelson V, Carsley S, Leatherdale ST. (2023). School learning modes during the COVID-19 response and pre- to during pandemic mental health changes in a prospective cohort of Canadian adolescents. Social Psychiatry and Psychiatric Epidemiology. https://doi.org/10.1007/s00127-023-02557-2

• Duncan MJ, Riazi NA, Belita E, Vanderloo LM, Carsley S, Laxer R, Carson V, Chaput JP, Faulkner G, Leatherdale ST, Patte KA. (2023). Physical activity and screen time change among adolescents in Canada: Examining the impact of COVID-19 in worsening inequity. Preventive Medicine;175: 107676. https://doi.org/10.1016/j.ypmed.2023.107676 

• Gilchrist JD, Mitchell J, Qian W, Patte KA, Leatherdale ST. (2023). Bidirectional associations between sleep duration and emotion dysregulation across adolescence. Dev Psychol. doi: 10.1037/dev0001560.

• Gilchrist JD, Gohari MR, Benson L, Patte KA, Leatherdale ST. (2023). Reciprocal associations between positive emotions and resilience predict flourishing among adolescents. Health Promot Chronic Dis Prev Can. https://doi.org/10.24095/hpcdp.43.7.01

• Duncan MJ, Mitchell J, Riazi NA, Belita E, Vanderloo LM, Carsley S, Carson V, Chaput JP, Faulkner G, Leatherdale ST, Patte KA. (2023). Sleep duration change among adolescents in Canada: Examining the impact of COVID-19 in worsening inequity. SSM - Population Health. https://doi.org/10.1016/j.ssmph.2023.101477

• Hunter S, Veerasingam E, Barnett TA, Patte KA, Leatherdale ST, Pabayo R. (2023). The association between income inequality and adolescent body mass index: findings from the COMPASS study (2016-2019). Can J Public Health. https://doi.org/10.17269/s41997-023-00798-x.

• Gohari MR, Varatharajan T, MacKillop J, Leatherdale ST. (2023). Dynamic Changes in Drinking Behaviour among Subpopulations of Youth during the COVID-19 Pandemic: A Prospective Cohort Study. Healthcare, 11, 1945. https://doi.org/10.3390/healthcare11131945

• Cole AG, Gohari MR, Leatherdale ST. (2023). Evaluating the One-Year Impact of School e-Cigarette Use Interventions among Current Youth e-Cigarette Users in the COMPASS Study, 2017/18–2018/19. International Journal of Environmental Research and Public Health, 20(14):6353. doi:10.3390/ijerph20146353

• Mougharbel F, Chaput J-P, Sampasa – Kanyinga H, Colman I, Leatherdale ST, Patte KA, Goldfield GS. (2023). Longitudinal Associations Between Different Types of Screen Use and Depression and Anxiety Symptoms in Adolescents. Frontiers in Public Health. 11, 2023. https://doi.org/10.3389/fpubh.2023.1101594  

• Dabravolskaj J, Veugelers PJ, Amores A, Leatherdale ST, Patte KA, Maximova K. (2023). The Impact of 12 Modifiable Lifestyle Behaviors on Depressive and Anxiety Symptoms in Middle Adolescence: Prospective Analyses of the Canadian Longitudinal COMPASS Study. International Journal of Behavioral Nutrition and Physical Activity. 20, 45. https://doi.org/10.1186/s12966-023-01436-y  

• Benny C, Patte KA, Veugelers PJ, Senthilselvan A, Leatherdale ST, Pabayo RA. (2023).  Longitudinal Study of Income Inequality and Mental Health Among Canadian Secondary School Students: Results From the Cannabis, Obesity, Mental Health, Physical Activity, Alcohol, Smoking, and Sedentary Behavior Study (2016–2019). Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2023.01.028

• Benny C, Steele BJ, Patte KA, Leatherdale ST, Pabayo R. (2023). Income inequality and daily use of cannabis, cigarettes, and e-cigarettes among Canadian secondary school students: Results from COMPASS 2018–19. International Journal of Drug Policy, 115:104014. https://doi.org/10.1016/j.drugpo.2023.104014

• Pabayo R, Patel P, Patte KA, Leatherdale ST. (2023). Income Inequality and the Odds of Online Gambling Among a Large Sample of Adolescents in Canada. Journal of Gambling Studies. https://doi.org/10.1007/s10899-023-10194-2.

• Riazi NA, Battista K, Duncan MJ, Wade TJ, Pickett W, Ferro MA, Leatherdale ST, Patte KA. (2023). Stronger together: Coping behaviours and mental health changes of Canadian adolescents in early phases of the COVID-19 pandemic. BMC Public Health. 23, 319. https://doi.org/10.1186/s12889-023-15249-y. 

• Battista K, Diao L, Patte KA, Dubin JA, Leatherdale ST. (2023). Examining the use of decision trees in population health surveillance research: an application to youth mental health survey data in the COMPASS study. Health Promotion and Chronic Disease Prevention in Canada. 43, 2. https://doi.org/10.24095/hpcdp.43.2.03.

• Fagan MJ, Duncan MJ, Bedi RP, Puterman E, Leatherdale ST, Faulkner G. (2023). The prospective association between physical activity and initiation of current substance use among adolescents: Examining the role of school connectedness. Mental Health and Physical Activity. 24, 100503. https://doi.org/10.1016/j.mhpa.2023.100503.

• Hunter S, Battista K, Leatherdale ST, Spence JC, Carson V.(2023). Longitudinal associations between the school built environment and adolescents’ physical activity: Evidence from the COMPASS study. Journal of Transport & Health. 29, 101565. https://doi.org/10.1016/j.jth.2023.101565.

• Gohari MR, Varatharajan T, Patte KA, MacKillop J, Leatherdale ST. (2023). The intersection of internalizing symptoms and alcohol use during the COVID-19 pandemic: A prospective cohort study. Preventive Medicine. 166, 107381. https://doi.org/10.1016/j.ypmed.2022.107381

• Butler A, King N, Battista K, Pickett W, Patte KA, Elgar FJ, Craig W, Leatherdale ST. (2023). Mental health and cannabis use among Canadian youth: Integrated findings from cross-sectional and longitudinal analyses. International Journal of Drug Policy. 112, 103926. https://doi.org/10.1016/j.drugpo.2022.103926

2022

• Fagan MJ, Duncan MJ, Bedi RP, Puterman E, Leatherdale ST, Faulkner G. (2022). Physical activity and substance use among Canadian adolescents: Examining the moderating role of school connectedness. Frontiers in Public Health. 10:889987. doi: 10.3389/fpubh.2022.889987

• Lien A, Sampasa-Kanyinga H, Patte KA, Leatherdale ST, Chaput JP (2022). Sociodemographic and mental health characteristics associated with changes in movement behaviours due to the COVID-19 pandemic in adolescents. Journal of Activity, Sedentary and Sleep Behaviors. 1 (5). https://doi.org/10.1186/s44167-022-00004-2

• Leatherdale ST, Bélanger RE, Gansaonré RJ, Cole AG, & Haddad S. (2022). Youth vaping during the early stages of the COVID-19 pandemic period: Adjusted annual changes in vaping between the pre-COVID and initial COVID-lockdown waves of the COMPASS study. Nicotine & Tobacco Research, ntac083. https://doi.org/10.1093/ntr/ntac083

• Burnett T, Battista K, Butt M, Sherifali D, Leatherdale ST, Dobbins M. (2022). The association between public health engagement in school-based substance use prevention programs and student alcohol, cannabis, e-cigarette and cigarette use. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-022-00655-3

• Cole AG, Short M, Aalaei N, Gohari MR, Leatherdale ST. (2022). Identifying changes in e-cigarette use among a longitudinal sample of Canadian youth e-cigarette users in the COMPASS cohort study, 2017/18–2018/19. Addictive Behaviors Reports. https://doi.org/10.1016/j.abrep.2022.100458

• Butler A, Doggett A, Vermeer J, Magier M, Patte KA, Maginn D, Markham C, Leatherdale ST. (2022). Shifting school health priorities pre–post cannabis legalization in Canada: Ontario secondary school rankings of student substance use as a health-related issue. Health Education Research. https://doi.org/10.1093/her/cyac027

• Romano I, Butler A, Williams G, Aleyan S, Patte KA, Leatherdale ST. (2022). Risky cannabis use is associated with varying modes of cannabis consumption: Gender differences among Canadian high school students. Drug and Alcohol Dependence Reports. https://doi.org/10.1016/j.dadr.2022.100101

• Duncan MJ, Riazi NA, Faulkner G, Gilchrist JD, Leatherdale ST, Patte KA. (2022). The association of physical activity, sleep, and screen time with mental health in Canadian adolescents during the COVID-19 pandemic: A longitudinal isotemporal substitution analysis. Mental Health and Physical Activity. https://doi.org/10.1016/j.mhpa.2022.100473

• Battista K, Patte KA, Diao L, Dubin JA, Leatherdale ST. (2022). Using Decision Trees to Examine Environmental and Behavioural Factors Associated with Youth Anxiety, Depression, and Flourishing. International Journal of Environmental Research and Public Health. 19(17), 10873. https://doi.org/10.3390/ijerph191710873

• Gohari MR, Varatharajan T, MacKillop J, Leatherdale ST. (2022). Examining the Impact of the COVID-19 Pandemic on youth Alcohol Consumption: longitudinal Changes From Pre-to Intra-pandemic Drinking in the COMPASS Study. Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2022.07.007

• Duncan MJ, Riazi NA, Faulkner G, Gilchrist JD, Leatherdale ST, Patte KA. (2022). Changes in Canadian Adolescent Time Use and Movement Guidelines During the Early COVID-19 Outbreak: A Longitudinal Prospective Natural Experiment Design. Journal of Physical Activity and Health. https://doi.org/10.1123/jpah.2021-0691

• Williams GC, Patte KA, Ferro MA, Leatherdale ST. (2022). Exploring the Bi-Directional Associations Between Poly-Substance Use and Symptoms of Anxiety and Depression Among a Large Sample of Canadian Adolescents. The Canadian Journal of Addiction. 13(2), 7-16. doi: 10.1097/CXA.0000000000000144

• Doggett A, Chaurasia A, Chaput JP, Leatherdale ST. (2022). Learning from missing data: examining nonreporting patterns of height, weight, and BMI among Canadian youth. International Journal of Obesity. https://doi.org/10.1038/s41366-022-01154-8

• Barrense-Dias Y, Bélanger R, Desbiens F, Leatherdale S, Haddad S. (2022). Understanding Sexual Health Indicators During Adolescence: A Study to Consider Time Since Sexual Debut When Exploring Multiple Sexual Partners. Archives of Sexual Behavior.51,1765–1772. https://doi.org/10.1007/s10508-021-02207-1

• Morissette A, Lefebvre G, Bacque-Dion C, Bélanger R, Cazelais-Asselin F, Lalonde B, Dontigny A, Leatherdale S, Haddad S. (2022). Disparities in high schools' vaccination coverage (COVID-19). A natural experiment in the Province of Quebec. Preventive Medicine. https://doi.org/10.1016/j.ypmed.2022.107056

• Sylvestre MP, de Montigny S, Boulanger L, Goulet D, Doré I, O'Loughlin J, Haddad S, Bélanger RE, Leatherdale S. (2022). Chapter 4: A prognostic tool to identify youth at risk of at least weekly cannabis use.  In A. Shaban-Nejad et al. (eds.), AI for Disease Surveillance and Pandemic Intelligence (pp 37-48). Springer. Studies in Computational Intelligence 1013. https://doi.org/10.1007/978-3-030-93080-6_4

• Magier MJ, Leatherdale ST, Wade TJ, Patte KA. (2022). The relations between youth cannabis use, school cannabis use-related disciplinary approaches and student perceptions of school support. Substance Use & Misuse. https://doi.org/10.1080/10826084.2022.2052097

• Duncan MJ, Leatherdale ST, Patte KA. (2022). Do you really want to be forever young? Emotional health and psychosocial well-being by relative birth quarter in Canadian Adolescents. Journal of Adolescent Health.7(4): 625-633. https://doi.org/10.1016/j.jadohealth.2021.10.034

• MacDonald KB, Patte KA, Leatherdale ST, Schermer JA. (2022). Loneliness and screen time usage over a year. Journal of Adolescence. https://doi.org/10.1002/jad.12024

• Hammami N, Patte K, Battista K, Livermore M, Leatherdale ST. (2022). Examining the role that weight perception and social influences have on mental health among youth in the COMPASS study. Social Psychiatry and Psychiatric Epidemiology.57(4). https://doi.org/10.1007/s00127-022-02219-9

• Pabayo R. Benny C, Veugelers P, Senthilselvan A, Leatherdale ST. (2022). Income Inequality and Bullying Victimization and Perpetration: Evidence From Adolescents in the COMPASS Study. Health Education & Behavior. 1-10. https://doi.org/10.1177/10901981211071031

• Doggett A, Battista K, Jiang Y, de Groh M, Leatherdale ST. (2022). Patterns of Cannabis Use among Canadian Youth over Time; Examining Changes in Mode and Frequency Using Latent Transition Analysis. Substance Use & Misuse. https://doi.org/10.1080/10826084.2021.2019785
• Williams GC, Cole AG, de Groh M, Jiang Y, Leatherdale ST. (2022). More support needed: Evaluating the impact of school e-cigarette prevention and cessation programs on e-cigarette initiation among a sample of Canadian secondary school students. Preventive Medicine. 18;155:106924. https://doi.org/10.1016/j.ypmed.2021.106924

2021

• Romano I, Ferro MA, Patte KA, Leatherdale ST. (2021). Measurement invariance of the GAD-7 and CESD-R-10 among adolescents in Canada. Journal of Pediatric Psychology. 1-10. https://doi.org/10.1093/jpepsy/jsab119

• Benny C, Patte KA, Veugelers P, Leatherdale ST, Pabayo R. (2021). Income inequality and depression among Canadian secondary students: Are psychosocial well-being and social cohesion mediating factors?. SSM - Population Health. https://doi.org/10.1016/j.ssmph.2021.100994

• Burns KE, Chaurasia A, Carson V, Leatherdale ST. (2021). Examining if changes in gender-specific and co-ed intramural programs affect youth physical activity over time: a natural experiment evaluation using school- and student-level data from the COMPASS study. BMC Public Health. 8;21(1):2045. doi: 10.1186/s12889-021-12090-z.

• Romano I, Patte KA, de Groh M, Jiang Y, Wade TJ, Bélanger R, Leatherdale ST. (2021). Substance-related coping behaviours among youth during the early months of the COVID-19 pandemic. Addictive Behaviours; 14.https://doi.org/10.1016/j.abrep.2021.100392

• Williams GC, Cole AG, de Groh M, Jiang Y, Leatherdale ST. (2021). Investigating individual-level correlates of e-cigarette initiation among a large sample of Canadian high school students. Health Promot Chronic Dis Prev Can; 41(10):292-305. https://doi.org/10.24095/hpcdp.41.10.04

• Bennie JA, Smith JJ, Qian W, Leatherdale ST, Faulkner G. (2021). Longitudinal trends and predictors of muscle-strengthening activity guideline adherence among Canadian youths. Journal of Science and Medicine in Sport. https://doi.org/10.1016/j.jsams.2021.10.008 

• Leatherdale ST, Burns KE, Qian W, Faulkner G, Carson V. (2021). Evaluating the impact of the Healthy Kids Community Challenge (HKCC) on physical activity of older youth. International Journal of Environmental Research and Public Health. 18(3083). https://doi.org/10.3390/ijerph18063083

• Butler A, Gohari MR, Cole AG, Aleyan S, Romano I, Leatherdale ST. (2021). Bidirectional associations between cannabis, e-cigarette, and cigarette use among Canadian youth: findings from the COMPASS Study. Drugs: Education, Prevention & Policy. https://doi.org/10.1080/09687637.2021.1929848

• Barratt J, Patte KA, Battista K, Leatherdale ST. (2021). The impact of changes in physical education class enrollment on moderate-to-vigorous physical activity among a large sample of Canadian youth. Journal of School Health. https://doi.org/10.1111/josh.13093

• Buchan MC, Romano I, Butler A, Laxer RE, Patte KA, Leatherdale ST. (2021). Bi-directional relationships between physical activity and mental health among a large sample of Canadian youth: a sex-stratified analysis of students in the COMPASS study. International Journal of Behavioral Nutrition and Physical Activity. 18(132). https://doi.org/10.1186/s12966-021-01201-z

• Williams GC, Patte KA, Ferro MA, Leatherdale ST. (2021). Associations between longitudinal patterns of substance use and anxiety and depression symptoms among a sample of Canadian secondary school students. International Journal of Environmental Research and Public Health. 18(19): 10468. https://doi.org/10.3390/ijerph181910468

• Bélanger R, Patte KA, Leatherdale ST, Gansaonré RJ, Haddad S. (2021). An impact analysis of the early months of the COVID-19 pandemic on mental health in a prospective cohort of Canadian adolescents. Journal of Adolescent Health. https://doi.org/10.1016/j.jadohealth.2021.07.039

• Doggett A, Godin KM, Schell O, Wong SL, Jiang Y, Leatherdale ST. (2021). Assessing the impact of sports and recreation facility density within school neighbourhoods on Canadian adolescents’ substance use behaviours: quasi-experimental evidence from the COMPASS study, 2015–2018. BMJ Open. 11:e046171. http://dx.doi.org/10.1136/bmjopen-2020-046171

• Sampasa-Kanyinga H, Colman I, Dumuid D, Janssen I, Goldfield GS, Wang JL, Patte KA, Leatherdale ST, Chaput JP. (2021). Longitudinal association between movement behaviours and depressive symptoms among adolescents using compositional data analysis. PLoS One; (16)9. https://doi.org/10.1371/journal.pone.0256867

• Zuckermann AME, Gohari MR, Romano I, Leatherdale ST. (2021) Changes in cannabis use modes among Canadian youth across recreational cannabis legalization: Data from the COMPASS prospective cohort study. Addictive Behaviours; 122.  https://doi.org/10.1016/j.addbeh.2021.107025

• Bacque Dion C, Bélanger R, Leatherdale ST, Haddad S. (2021). Adolescents’ adoption of COVID-19 preventive measures during the first months of the pandemic: What led to early adoption? Health Promot Chronic Dis Prev Can;  41(12). https://doi.org/10.24095/hpcdp.41.12.03

• Vermeer J, Battista K, Leatherdale S. (2021). Examining Engagement With Public Health in the Implementation of School-Based Health Initiatives: Findings From the COMPASS Study. Journal of School Health; 91 (10). https://doi.org/10.1111/josh.13072

• Gohari MR, Williams GC, Leatherdale ST. (2021). Developmental Trajectories of Cannabis and Alcohol Use Among a Longitudinal Sample of Secondary School Students in Ontario. The Canadian Journal of Addiction; 12(2): 24-32. doi: 10.1097/CXA.0000000000000115. 

• Papasideris M, Leatherdale ST, Battista K, Hall PA. (2021). An examination of the prospective association between physical activity and academic achievement in youth at the population level. PLoS One; (16)6. https://doi.org/10.1371/journal.pone.0253142

• Leatherdale ST, Bélanger RE, Gansaonre RJ, Patte KA, deGroh M, Jiang Y, Haddad S. (2021). Examining the impact of the early stages of the COVID-19 pandemic period on youth cannabis use: adjusted annual changes between the pre-COVID and initial COVID lockdown waves of the COMPASS study. BMC Public Health; 21:1181. DOI: 10.1186/s12889-021-11241-6

• Murphy J, Patte KA, Sullivan P, Leatherdale ST. (2021). Exploring the Association Between Sport Participation and Symptoms of Anxiety and Depression in a Sample of Canadian High School Students. Journal of Clinical Sport Psychology. Available online ahead of print. https://doi.org/10.1123/jcsp.2020-0048

• Patte KA, Livermore M, Qian W, Leatherdale ST. (2021). Do weight perception and bullying victimization account for links between weight status and mental health among adolescents? BMC Public Health;21:1062. https://doi.org/10.1186/s12889-021-11037-8 

• Williams GC, Patte KA, Ferro MA, Leatherdale ST. (2021). Substance use classes and symptoms of anxiety and depression among Canadian secondary school students. Health Promotion and Chronic Disease Prevention in Canada: Research, Policy and Practice, 41(5). https://doi.org/10.24095/hpcdp.41.5.02

• Vine MM, Vermeer J, Romano L, Harrington DW, Butler AE, Patte KA, Godin KM, Leatherdale ST. (2021). Secondary School Nutrition Policy Compliance in Ontario and Alberta, Canada: A Follow-Up Study Examining Vending Machine Data from the COMPASS Study. International Journal of Environmental Research and Public Health.18(7): 3817. https://doi.org/10.3390/ijerph18073817

• Magier M, Leatherdale ST, Wade TJ, Patte KA. (2021). Disciplinary Approaches for Cannabis Use Policy Violations in Canadian Secondary Schools. International Journal of Environmental Research and Public Health, 18(5). https://doi.org/10.3390/ijerph18052472

• Doggett A, Gohari MR, Godin KM, Ferro MA, Patte KA, Leatherdale ST. (2021). Cannabis use, screen time, and internalizing symptoms among Canadian youth: testing mediation pathways. Substance Use and Misuse. https://doi.org/10.1080/10826084.2021.1922455 

• Butler A, Battista K, Leatherdale ST, Meyer SB, Elliott SJ, Majowicz SE. (2021). A comparison of repeat cross-sectional and longitudinal results from the COMPASS study: design considerations for analysing surveillance data over time. International Journal of Social Research Methodology.  https://doi.org/10.1080/13645579.2021.1922804

• Burns KE, Chaurasia A, Carson V, Leatherdale ST. (2021). A quasi-experimental examination of how changes in school-level intramurals are associated with physical activity among a sample of Canadian secondary school students from the COMPASS Study. SSM - Population Health, 14. https://doi.org/10.1016/j.ssmph.2021.100805

• Fagan MJ, Di Sebastiano KM, Qian W, Leatherdale ST, Faulkner G. (2021). The Energy to Smoke: Examining the Longitudinal Association between Beverage Consumption and Smoking and Vaping Behaviours among Youth in the COMPASS Study. International Journal of Environmental Research and Public Health. 18(8): 3864. https://doi.org/10.3390/ijerph18083864. 

• Doan N, Romano I, Butler A, Laxer RE, Patte KA, Leatherdale ST. (2021). Weight control intentions and mental health among Canadian adolescents: a gender-based analysis of students in the COMPASS study. Health Promotion and Chronic Disease Prevention in Canada: Research Policy and Practice, 41(4). https://doi.org/10.24095/hpcdp.41.4.01

• Williams G, Burns KE, Battista K, de Groh M, Jiang Y, Leatherdale ST. (2021). High School Intramural Participation and Substance Use: A Longitudinal Analysis of COMPASS Data. Substance Use & Misuse. https://doi.org/10.1080/10826084.2021.1901932.

• Burns KE, Vermeer J, Battista K, Leatherdale ST. (2021). A school-level examination of the association between programs and policies and physical activity outcomes among females from the COMPASS Study. International Journal of Environmental Research and Public Health, 18(6):3314. https://doi.org/10.3390/ijerph18063314.

• Gohari MR, Zuckermann AME, Leatherdale ST. (2021). A longitudinal examination of alcohol cessation and academic outcomes among a sample of Canadian secondary school students. Addictive Behaviours, 118. https://doi.org/10.1016/j.addbeh.2021.106882. 

• Zuckermann AME, Battista K, Bélanger RE, Haddad S, Butler A, Costello MJ, Leatherdale ST. (2021). Trends in youth cannabis use across cannabis legalization: Data from the COMPASS prospective cohort study. Preventive Medicine Reports, 22. https://doi.org/10.1016/j.pmedr.2021.101351.

• Cole AG, Laxer RE, Patte KA, Leatherdale ST. (2021). Can we reverse this trend? Exploring health and risk behaviours of grade 12 cohorts of Ontario students from 2013–2019. International Journal of Environmental Research and Public Health, 18(6), 3109. https://doi.org/10.3390/ijerph18063109

• Patte KA, Cole AG, Qian W, Magier M, Vine M, Leatherdale ST.(2021). Are closed campus policies associated with adolescent eating behaviours? Health Promotion and Chronic Disease Prevention in Canada;41:3. https://doi.org/10.24095/hpcdp.41.3.02 

• Burns KE,Chaurasia A, Carson V, Leatherdale ST. (2021). Examining if changes in the type of school-based intramural programs affect youth physical activity over time: A natural experiment evaluation. International Journal of Environmental Research and Public Health, 18 (5): 2752. https://doi.org/10.3390/ijerph18052752

• Duncan MJ, Patte KA, Leatherdale ST. (2021). Mental health associations with academic performance and education behaviors in Canadian secondary school students. Canadian Journal of School Psychology. https://doi.org/10.1177/0829573521997311

• Patte KA, Gohari MR, Leatherdale ST. (2021). Does school connectedness differ by student ethnicity? A latent class analysis among Canadian youth. Multicultural Education Review. https://doi.org/10.1080/2005615X.2021.1890310 

• Lee Y, Kim Y, Leatherdale ST, Chung H. Multilevel latent class profile analysis: an application to stage-sequential patterns of alcohol use in a sample of Canadian Youth. Evaluation & the Health Professions. https://doi.org/10.1177/0163278721989547
• Gilchrist JD, Battista K, Patte KA, Faulkner G, Carson V, Leatherdale ST. (2021). Effects of reallocating physical activity, sedentary behaviors, and sleep on mental health in adolescents. Mental health and Physical Activity; 20. https://doi.org/10.1016/j.mhpa.2020.100380 

2020

• Aleyan S, Ferro MA, Hitchman SC, Leatherdale ST. (2020). Does having one or more smoking friends mediate the transition from e-cigarette use to cigarette smoking: a longitudinal study of Canadian youth. Cancer Causes & Control. https://doi.org/10.1007/s10552-020-01358-1
• Williams G, Burns K, Battista K, de Groh M, Jiang Y, Leatherdale ST. (2020). A Cross-Sectional Examination of the Association Between Co-ed and Gender-Specific School Intramural Programs and Intramural Participation Among a Sample of Canadian Secondary School Students. Preventive Medicine Reports; 20. https://doi.org/10.1016/j.pmedr.2020.101233

• Duncan MJ, Patte KA, Leatherdale ST.(2020). Hit the chronic… physical activity: are cannabis associated mental health changes in adolescents attenuated by remaining active? Social Psychiatry and Psychiatric Epidemiology. https://doi.org/10.1007/s00127-020-01900-1

• Butler A, Battista K, Leatherdale ST, Meyer SB, Elliott, SJ, Majowicz SE. (2020). Environmental factors of youth milk and milk alternative consumption. American Journal of Health Behavior; 44(5): 666-680. https://doi.org/10.5993/AJHB.44.5.10.

• Romano I, Ferro MA, Patte KA, Diener E, Leatherdale ST. (2020). Measurement Invariance of the Flourishing Scale among a Large Sample of Canadian Adolescents. International Journal of Environmental Research and Public Health; 17 (21). https://doi.org/10.3390/ijerph17217800

• Livermore M, Duncan MJ, Leatherdale ST, Patte KA. (2020). Are weight status and weight perception associated with academic performance among youth? Journal of Eating Disorders;8(52). https://doi.org/10.1186/s40337-020-00329-w

• Doan N, Patte KA, Ferro MA, Leatherdale ST. (2020).Reluctancy towards Help-Seeking for Mental Health Concerns at Secondary School among Students in the COMPASS Study. International Journal of Environmental Research and Public Health; 17(19). https://doi.org/10.3390/ijerph17197128

• Matteau-Pelletier L, Bélanger RE, Leatherdale ST, Desbiens F, Haddad S. (2020). Sex‐Related Differences in Adolescent Cannabis Use: Influences of School Context and School Connectedness. Journal of School Health; 90(11). https://doi.org/10.1111/josh.12950. 

• Fagan MJ, Di Sebastiano KM, Qian W, Leatherdale S, Faulkner G. (2020). Coffee and cigarettes: Examining the association between caffeinated beverage consumption and smoking behaviour among youth in the COMPASS study. Prev Med Reports;19(101148). https://doi.org/10.1016/j.pmedr.2020.101148

• Williams GC, Burns K, Battista K, de Groh M, Jiang Y, Leatherdale ST. (2020). High school sport participation and substance use: A cross-sectional analysis of students from the COMPASS study. Addictive Behaviors Reports, 12(100298). https://doi.org/10.1016/j.abrep.2020.100298

• Weatherson K, Gierc M, Patte K, Qian W, Leatherdale ST, & Faulkner G. (2020). Complete mental health status and associations with physical activity, screen time, and sleep in youth. Mental Health and Physical Activity, 19 (100354). https://doi.org/10.1016/j.mhpa.2020.100354

• Cole AG, Aleyan S, Battista K, Leatherdale ST. (2020). Trends in youth e-cigarette and cigarette use between 2013 and 2019: Insights from repeat cross-sectional data from the COMPASS study. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-020-00389-0

• Gohari M, Cook R, Dubin J, Leatherdale ST. (2020). The impact of an alcohol policy change on developmental trajectories of youth alcohol use: examination of a natural experiment in Canada. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-020-00366-7
• Hammami N, Chaurasia A, Bigelow P, Leatherdale ST. (2020). Gender differences in the longitudinal association between multilevel latent classes of chronic disease risk behaviours and body mass index in adolescents. Health Promotion and Chronic Disease Prevention in Canada: Research, Policy and Practice. 40:259-266. https://doi.org/10.24095/hpcdp.40.9.01
• Magier M, Patte KA, Battista K, Cole AG, Leatherdale ST. (2020). Are school substance use policy violation disciplinary consequences associated with student engagement in cannabis? International Journal of Environmental Research and Public Health, 17(15). https://doi.org/10.3390/ijerph17155549
• Buchan MC, Carson V, Faulkner G, Qian W, Leatherdale ST. (2020). Factors Associated with Students Meeting Components of Canada’s New 24-Hour Movement Guidelines over Time in the COMPASS Study. Environmental Research and Public Health, https://doi.org/10.3390/ijerph17155326
• Zuckermann AME, Gohari M, de Groh M, Jiang Y, Leatherdale ST.(2020). The role of school characteristics in pre-legalization cannabis use change among Canadian youth: implications for policy and harm reduction. Health Education Research, https://doi.org/10.1093/her/cyaa018
• Holligan S, Qian W, de Groh M, Jiang Y, Patte KA, Battista K, Leatherdale ST. (2020). Binge Drinking and Educational Participation among Youth in the COMPASS Host Study (Year 5: 2016/2017): School Connectedness and Flourishing as Compensatory Factors. Canadian Journal of Family and Youth, 12(1):55-77. DOI: 10.29173/cjfy29550
• Aleyan S, Hitchman SC, Ferro MA, Leatherdale ST. (2020).Trends and predictors of exclusive e-cigarette use, exclusive smoking and dual use among youth in Canada. Addictive Behaviors, 109. https://doi.org/10.1016/j.addbeh.2020.106481
• Probst C, Elton-Marshall T, Imtiaz S, Patte KA, Rehm J, Sornpaisarn B, Leatherdale ST. (2020). A supportive school environment may reduce the risk of non-medical prescription opioid use due to impaired mental health among students.European Child & Adolescent Psychiatry. https://doi.org/10.1007/s00787-020-01518-3

• Williams GC, Battista K, de Groh M, Jiang Y, Morrison H, Leatherdale ST. (2020). Longitudinal associations between bullying and alcohol use and binge drinking among grade 9 and 10 students in the COMPASS study. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-020-00319-0 

• Doggett A, Battista K, Leatherdale ST. (2020). Modes of cannabis use among Canadian youth in the COMPASS study; using LCA to examine patterns of smoking, vaping, and eating/drinking cannabis. Drugs: Education, Prevention and Policy. https://doi.org/10.1080/09687637.2020.1769560

• Vine MM, Butler A, Harrington DW, Patte KA, Godin K, Leatherdale ST. (2020). An evaluation of secondary school nutrition policy compliance using vending machine data from the COMPASS study in Ontario and Alberta, Canada. Sage Research Methods Cases: Medicine & Health,1. https://dx.doi.org/10.4135/9781529718270

• Vine MM, Leatherdale ST, Laxer RE. (2020). Priority setting for school nutrition research: Developing a collaborative research agenda. Canadian Journal of Public Health. https://doi.org/10.17269/s41997-020-00331-4

• Patte, KA, Qian W, Leatherdale ST. (2020). Predictors of One-Year Change in How Youth Perceive Their Weight. Journal of Obesity, 2020:1-15. https://doi.org/10.1155/2020/7396948

• Patte KA, Faulkner G, Qian W, Duncan M, Leatherdale ST. (2020). Are one-year changes in adherence to the 24-hour movement guidelines associated with depressive symptoms among youth? BMC Public Health, 20:793. https://doi.org/10.1186/s12889-020-08887-z

• Faulkner G, Weatherson K, Patte K, Qian W, Leatherdale ST. Are one-year changes in adherence to the 24-hour movement guidelines associated with flourishing among Canadian youth? Preventive Medicine 2020;139:106179. https://doi.org/10.1016/j.ypmed.2020.106179

• Holligan SD, Qian W, de Groh M, Jiang Y, Leatherdale ST. (2020). Micro-level factors associated with alcohol use and binge drinking among youth in the COMPASS study (2012/13 to 2017/18). Health Promotion and Chronic Disease Prevention in Canada, 40(3):63-69. https://doi.org/10.24095/hpcdp.40.3.01  

• Zuckermann AME, Gohari MR, de Groh M, Jiang Y, Leatherdale ST. (2020). Cannabis cessation among youth: rates, patterns and academic outcomes in a large prospective cohort of Canadian high school students. Health Promotion and Chronic Disease Prevention in Canada, 40(4). https://doi.org/10.24095/hpcdp.40.4.01

• Zuckermann AME, Williams GC, Battista K, Jiang Y, de Groh M, Leatherdale ST. (2020). Prevalence and correlates of youth poly-substance use in the COMPASS study. Addictive Behaviours, 107. https://doi.org/10.1016/j.addbeh.2020.106400
• Zuckermann AME, Qian W, Battista K, Jiang Y, de Groh M, Leatherdale ST. (2020). Factors influencing the non-medical use of prescription opioids among youth: results from the COMPASS study. Journal of Substance Use. https://doi.org/10.1080/14659891.2020.1736669
• Gohari M, Dubin JA, Richard J. Cook RJ, Leatherdale ST. (2020). Identifying patterns of alcohol use among secondary school students in Canada: A multilevel latent class analysis. Addictive Behaviors, 100. https://doi.org/10.1016/j.addbeh.2019.106120

2019

back to top

2018

• Godin K, Hammond D, Chaurasia A, Leatherdale ST. (2018). Examining changes in school vending machine beverage availability and sugar-sweetened beverage intake among Canadian adolescents participating in the COMPASS study: a longitudinal assessment of provincial school nutrition policy compliance and effectiveness. International Journal of Behavioral Nutrition and Physical Activity, 15:121. https://doi.org/10.1186/s12966-018-0754-5

• Zuckermann AME, Gohari MR, de Groh M, Jiang Y, Leatherdale ST. (2018). Factors associated with cannabis use change in youth: Evidence from the COMPASS study. Addictive Behaviours, 90: 158-163. https://doi.org/10.1016/j.addbeh.2018.10.048 

• Patte KA, Qian W, Cole AG, Faulkner G, Chaput JP, Carson V, Leatherdale ST. (2018). School start time changes in the COMPASS study: associations with youth sleep duration, physical activity, and screen time. Sleep Medicine, 56: 16-22. https://doi.org/10.1016/j.sleep.2018.09.020

• Weatherson KA, O’Neill M, Lau EY, Qian W, Leatherdale ST, Faulkner G. (2018). The protective effects of school connectedness on substance use and physical activity. Journal of Adolescent Health, 1-8. https://doi.org/10.1016/j.jadohealth.2018.07.002 

• Butler A, Patte KA, Ferro, MA, Leatherdale ST. (2019). Interrelationships among depression, anxiety, flourishing, and cannabis use in youth. Addictive Behaviours, 89: 206-215. https://doi.org/10.1016/j.addbeh.2018.10.007
• Katapally TR, Thorisdottir AS, Laxer R, Qian W, Leatherdale ST. (2018). The association of school connectedness and bullying involvement with multiple screen time behaviours among youth in two Canadian provinces: A COMPASS study. Health Promotion and Chronic Disease Prevention. 38(10): 368-379. https://doi.org/10.24095/hpcdp.38.10.03
• Diplock KJ, Dubin JA, Leatherdale ST, Hammond D, Jones-Bitton A, Majowicz SE. (2018). Observation of high school students’ food handling behaviors: do they improve following a food safety education intervention? Journal of Food Protection. 81(6):917-925. doi: 10.4315/0362-028X.JFP-17-441.
• Hunter S, Leatherdale ST, Carson V. (2018). The 3-year longitudinal impact of sedentary behaviour on the academic achievement of adolescents.Journal of School Health. 88(9):660-668. https://doi.org/10.1111/josh.12672
• Milicic S, DeCicca P, Pierard E, Leatherdale ST. (2018). An evaluation of school-based e-cigarette control policies' impact on the use of vaping products. Tobacco Induced Diseases, 16(35): 1-9. https://doi.org/10.18332/tid/93594 
• Raffoul A, Leatherdale ST, Kirkpatrick SI. (2018). Weight Management, Weight Perceptions, and Health- Compromising Behaviours Among Adolescent Girls in the COMPASS Study. The Journal of Primary Prevention, 39: 345-360. https://doi.org/10.1007/s10935-018-0512-0
• Aleyan S, Cole A, Qian W, Leatherdale ST. (2018). Risky Business: a longitudinal study examining cigarette smoking initiation among susceptible and non-susceptible e-cigarette users in Canada. BMJ Open, 8:e021080. http://dx.doi. org/10.1136/bmjopen-2017- 021080
• Raffoul A, Leatherdale ST, Kirkpatrick SI. (2018). Dieting predicts engagement in multiple risky behaviours among adolescent Canadian girls: a longitudinal analysis. Canadian Journal of Public Health, 109(1): 61-69. https://doi.org/10.17269/s41997-018-0025-x

• Brown KM, Elliott SE, Robertson-Wilson J, Vine MM, Leatherdale ST. (2018). Can knowledge exchange support the implementation of a health-promoting schools approach? Perceived outcomes of knowledge exchange in the COMPASS study. BMC Public Health, 18:351 https://doi.org/10.1186/s12889-018-5229-8 

• Katapally TR, Laxer RE, Qian W, Leatherdale ST. (2018). Do school physical activity policies and programs have a role in decreasing multiple screen time behaviours among youth? Preventive Medicine, 110: 106-113. https://doi.org/10.1016/j.ypmed.2017.11.026

• Godin K, Chaurasia A, Hammond D, Leatherdale ST. (2018). Food Purchasing Behaviors and Sugar-Sweetened Beverage Consumption among Canadian Secondary School Students in the COMPASS Study. Journal of Nutrition Education and Behavior, 50(8):P803-812.E1. https://doi.org/10.1016/j.jneb.2017.12.014

• Godin K, Patte KA, Leatherdale ST. (2018). Examining Predictors of Breakfast Skipping and Breakfast Program Use Among Secondary School Students in the COMPASS Study. Journal of School Health, 88(2): 150-158. https://doi.org/10.1111/josh.12590

• Godin K, Chaurasia A, Hammond D, Leatherdale ST. (2018). Examining associations between school food environment characteristics and sugar-sweetened beverage consumption among Canadian secondary school students in the COMPASS study. Public Health Nutrition,21,1-13. doi:10.1017/S1368980018001246

• Laxer RE, Cooke M, Dubin JA, Brownson RC, Chaurasia A, Leatherdale ST. (2018). Behavioural patterns only predict concurrent BMI status and not BMI trajectories in a sample of youth in Ontario, Canada. PLOS ONE, 13(1).  https://doi.org/10.1371/journal.pone.0190405

back to top

2017

• Cole A, Kennedy R, Chaurasia A, Leatherdale ST. (2017). Exploring the Predictive Validity of the Susceptibility to Smoking Construct for Tobacco Cigarettes, Alternative Tobacco Products, and E-Cigarettes.  Nicotine & Tobacco Research, 21 (3): 323-330. https://doi.org/10.1093/ntr/ntx265

• Brown KM, Elliott SJ, Leatherdale ST. (2017). Researchers supporting schools to improve health: Influential factors and outcomes of knowledge brokering in the COMPASS study. Journal of School Health, 88(1): 54-64. https://doi.org/10.1111/josh.12578

• Patte KA, Qian W, Leatherdale ST. (2017). Modifiable predictors of insufficient sleep durations: A longitudinal analysis of youth in the COMPASS study. Preventive Medicine, 106: 164-170. https://doi.org/10.1016/j.ypmed.2017.10.035

• Patte KA, Qian W, Leatherdale ST. (2017). Binge drinking and academic aspirations, engagement, and performance: A longitudinal analysis among secondary school students in the COMPASS study. Health Promotion and Chronic Disease Prevention in Canada:Research, Policy and Practice, 37(11):376-385. https://doi.org/10.24095/hpcdp.37.11.02

• Hammond D, Reid JL, Cole AG, Leatherdale ST. (2017). Electronic cigarette use and smoking initiation among youth: a longitudinal cohort study. Canadian Medical Association Journal, 189(43). https://doi.org/10.1503/cmaj.161002

• Milicic S, Piérard E, DeCicca P, Leatherdale ST. (2017). Examining the association between physical activity, sedentary behaviour and sport participation with e-cigarette use and smoking status in a large sample of Canadian Youth. Nicotine and Tobacco Research, 21(3): 285-292. https://doi.org/10.1093/ntr/ntx238

• ​Harvey A, Faulkner G, Giangregorio L, Leatherdale ST. (2017). An examination of school- and student-level characteristics associated with the likelihood of students' meeting the Canadian physical activity guidelines in the COMPASS study. Can J Public Health, 9;108(4):348-354. DOI: 10.17269/cjph.108.5925.

• Cole AG, Qian W Leatherdale ST. (2017). Changing the smoking trajectory: Evaluating the impact of school-based tobacco interventions on changes to susceptibility to future smoking. International Journal of Environmental Research and Public Health, 14(10): 1182. https://doi.org/10.3390/ijerph14101182

• Patte KA, Cole AG, Qian W, Leatherdale ST (2017). Youth sleep durations and school start times: a cross-sectional analysis of the COMPASS study. Sleep Health, 3(6): 432-436. https://doi.org/10.1016/j.sleh.2017.07.011

• Brown KM, Elliott SJ, Robertson-Wilson J, Vine MM, Leatherdale ST (2017). “Now what?” Perceived factors influencing knowledge exchange in school health research. Health Promotion Practice, 19(4). https://doi.org/10.1177/1524839917732037

• Godin K, Chacón V, Barnoya J, Leatherdale ST (2017).The school environment and sugar-sweetened beverage consumption among Guatemalan adolescents. Public Health Nutrition, 20(16): 2980-2987. https://doi.org/10.1017/S1368980017001926

• Patte KA, Qian W, Leatherdale ST. (2017). Sleep duration trends and trajectories among youth in the COMPASS study. Sleep Health, 3(5): 309-316. https://doi.org/10.1016/j.sleh.2017.06.006

• Milicic S & Leatherdale ST. (2017). The Associations Between E-Cigarettes and Binge Drinking, Marijuana Use, and Energy Drinks Mixed With Alcohol. Journal of Adolescent Health, 60(3): 320–327. https://doi.org/10.1016/j.jadohealth.2016.10.011

• Lee EY, Hunter S, Leatherdale ST, Carson V. (2017). Sociodemographic correlates of physical activity and screen time among adolescents in Canada and Guatemala: Results from the COMPASS system. Global Health Promotion, 26(2): 25-35. https://doi.org/10.1177/1757975917710804

• Stearns JA, Carson V, Spence JC, Faulkner G, Leatherdale ST. (2017). The role of peer victimization in the physical activity and screen time of adolescents: a cross-sectional study. BMC Pediatr, 17(1):170. https://doi.org/10.1186/s12887-017-0913-x

• Lau E, Faulkner G,  Riazi N, Qian, W, Leatherdale, ST. (2017) An examination of how changing patterns of school travel mode impact moderate-to-vigorous physical activity among adolescents over time. Journal of Transport & Health. 6: 299-305. https://doi.org/10.1016/j.jth.2017.03.011

• Battista K, Leatherdale ST. (2017) Estimating how extra calories from alcohol consumption are likely an overlooked contributor to the youth obesity issue. Health Promotion and Chronic Disease Prevention in Canada, 37(6). https://doi.org/10.24095/hpcdp.37.6.03

• Patte KA, Qian W, Leatherdale ST. (2017) Is Binge Drinking Onset Timing Related to Academic Performance, Engagement, and Aspirations Among Youth in the COMPASS Study? Substance Use & Misuse, 52(13):1795-1800. https://doi.org/10.1080/10826084.2017.1306562

• Vine MM, Harrington DW, Butler A, Patte, KA, Godin K, Leatherdale, ST. (2017) Compliance with School Nutrition Policies in Ontario and Alberta: An assessment of secondary school vending machine data from the COMPASS Study. Canadian Journal of Public Health, 108(1):e43–e48. https://doi.org/10.17269/CJPH.108.5701

• Patte KA, Qian W, Leatherdale ST. (2017) Marijuana and alcohol use as predictors of academic aspirations and achievement: a longitudinal analysis among secondary school students in the COMPASS study. Journal of School Health, 87(5):310-318. https://doi.org/10.1111/josh.12498

• Laxer RE, Brownson RC, Dubin JA, Cooke M, Chaurasia A, Leatherdale ST. (2017). Clustering of risk-related modifiable behaviours and their association with overweight and obesity among a large sample of youth in the COMPASS study. BMC Public Health, 17(102). DOI 10.1186/s12889-017-4034-0

back to top

2016

• Lau EY, Faulkner G, Qian W, Leatherdale ST. (2016) Longitudinal associations of parental and peer influences with physical activity during adolescence: findings from the COMPASS study. Health Promotion and Chronic Disease Prevention in Canada, 36(11). https://doi.org/10.24095/hpcdp.36.11.01

• Patte KA, Laxer RE, Qian W, Leatherdale ST. (2016) An analysis of weight perception and physical activity and dietary behaviours among youth in the COMPASS study. SSM - Population Health; 2016(2):841-849. https://doi.org/10.1016/j.ssmph.2016.10.016

• Patte KA, Laxer RE, Qian W, Leatherdale ST (2016). Weight Perception and Weight-control Intention among Youth in the COMPASS Study.  American Journal of Health Behavior, 40 (5):614-623(10). https://doi.org/10.5993/AJHB.40.5.8

• Patte KA, Leatherdale ST. (2016) Are Ontario Secondary School Staff Trained and Supported in Delivering Healthy Eating and Weight-Related Initiatives? Physical & Health Education Journal. Available online: 8 September 2016.

• Hunter S, Leatherdale ST, Storey K, Carson V. (2016) A quasi-experimental examination of how school-based physical activity changes impact secondary school student moderate- to vigorous- intensity physical activity over time in the COMPASS study International Journal of Behavioral Nutrition and Physical Activity,13(86). https://doi.org/10.1186/s12966-016-0411-9

• Leatherdale ST, Stefanczyk JM,  Kirkpatrick SI. (2016), School Breakfast-Club Program Changes and Youth Eating Breakfast During the School Week in the COMPASS Study. Journal of School Health, 86(8): 568–577. https://doi.org/10.1111/josh.12408

• Patte KA, Leatherdale ST. (2016)  A cross-sectional analysis examining the association between dieting behaviours and alcohol use among secondary school students in the COMPASS study. Journal of Public Health, 39(2):321-329.  https://doi.org/10.1093/pubmed/fdw034

• Majowicz S, Diplock K, Leatherdale ST, Bredin C, Rebellato S, Hammond D, Jones-Bitton A, Dubin J. (2016) Food safety knowledge, attitudes and self-reported practices among Ontario high school students. Can J Public Health 2015,106(8):e520–e526. doi: 10.17269/CJPH.106.5213
• Minaker, LM, Leatherdale, ST. (2016) Association between Weight and Smoking Not Mediated by Weight Loss Attempts or Bullying. Am J Health Behav, 40(1):21-3. DOI: 10.5993/AJHB.40.1.3

2015

• Jones AC, Hammond D, Reid JL, Leatherdale ST. (2015) Where Should We Eat? Lunch Source and

  Dietary Measures Among Youth During the School Week. Can J Diet Pract Res. 2015 Dec;76(4):157-65.

• Carson V, Faulkner G, Sabiston CM, Tremblay MS, Leatherdale ST. (2015). Patterns of movement behaviors and their association with overweight and obesity in youth. International Journal of Public Health, 60(5), 551-559. https://doi.org/10.1007/s00038-015-0685-8
• Czoli CD, Hammond D, Reid JL, Cole AG, Leatherdale, ST. (2015). Use of conventional and alternative tobacco and nicotine products among a sample of Canadian youth. Journal of Adolescent Health, 57(1), 123-125. https://doi.org/10.1016/j.jadohealth.2015.03.006
• Leatherdale ST. (2015). An examination of the co-occurrence of modifiable risk factors associated with chronic disease among youth in the COMPASS study. Cancer Causes & Control, 26(4): 519-528. https://doi.org/10.1007/s10552-015-0529-0
• Leatherdale ST & Cole A. (2015). Examining the impact of changes in school tobacco control policies and programs on current smoking and susceptibility to future smoking among youth in the first two years of the COMPASS study: looking back to move forward. Tobacco Induced Diseases, 13(8). https://doi.org/10.1186/s12971-015-0031-1
• Leatherdale ST & Harvey A. (2015). Examining communication- and media-based recreational sedentary behaviors among Canadian youth: Results from the COMPASS study. Preventive Medicine, 74:74-80. https://doi.org/10.1016/j.ypmed.2015.02.005
• Reid JL, Hammond D, McCrory C, Dubin JA, Leatherdale ST. (2015). Use of caffeinated energy drinks among secondary school students in Ontario: Prevalence and correlates of using energy drinks and mixing with alcohol. Canadian Journal of Public Health, 106(3), 101. https://doi.org/10.17269/CJPH.106.4684

back to top

2014

• Herciu AC, Laxer RE, Cole AG, Leatherdale ST. (2014). A Cross-sectional Study Examining Factors Associated with Youth Binge Drinking in the COMPASS Study: Year 1 Data. Journal Alcohol Drug Depend, 2(172). doi:10.4172/2329-6488.1000172.
• Leatherdale ST, Bredin C, Blashill J. (2014). A software application for use in handheld devices to collect school built environment data. Measurement, 50: 331-338. https://doi.org/10.1016/j.measurement.2014.01.008
• Leatherdale ST, Brown KS, Carson V, Childs RA, Dubin JA, Elliott SJ, Faulkner G, Hammond D, Manske S, Sabiston CM, Laxer RE, Bredin C, Thompson-Haile A. (2014). The COMPASS study: a longitudinal hierarchical research platform for evaluating natural experiments related to changes in school-level programs, policies and built environment resources. BMC Public Health, 14(331). https://doi.org/10.1186/1471-2458-14-331

back to top

2013

• Leatherdale ST, & Laxer, R.E. (2013). Reliability and validity of the weight status and dietary intake measures in the COMPASS questionnaire: are the self-reported measures of body mass index (BMI) and Canada's food guide servings robust? International Journal of Behavioral Nutrition and Physical Activity, 10(42). https://doi.org/10.1186/1479-5868-10-42

back to top

Technical Reports

Volume 9 - 2023

• COMPASS Year 9 and 10 Recruitment and Retention

• Redevelopment of the School policies and Practices Questionnaire (2012 to 2022)

Volume 8 - 2021

• COMPASS Year 7 and 8 Recruitment and Retention

Volume 7 - 2020

• Correlates of milk and milk alternative consumption among Canadian secondary school students, circa 2017/2018
• COMPASS protocol changes and recruitment for online survey implementation during the COVID-19 pandemic

Volume 6 - 2019

• Student Data Linkage over Multiple Years
• COMPASS knowledge broker procedures for contacting and working with participating schools: an update
• COMPASS questionnaire changes from Year 1 to Year 7

Volume 5 - 2018

• COMPASS Year 5 and 6 school recruitment and retention

Volume 4 - 2017

• Development of a mental health module for the COMPASS system: Improving youth mental health trajectories. Part 2: Pilot Test and Focus Group Results
• Development of a mental health module for the compass system: Improving youth mental health trajectories. Part 1: Tool development and design
• COMPASS Year 3 and 4 School Recruitment and Retention

Volume 3 - 2015

• Expansion of the COMPASS study to Guatemala
• Using COMPASS data to evaluate the impact of the Healthy Kids Community Challenge (HKCC) on youth in Ontario: baseline student-level measures
• Assessing longitudinal data linkage results in the COMPASS study
• Knowledge broker procedures for contacting and working with participating schools
• Supplemental sampling and recruitment of additional schools in Ontario
• Alberta baseline sampling and recruitment results

Volume 2 - 2014

• Reliability and validity of the physical activity and sedentary behaviour measures in the COMPASS study
• Development of the COMPASS student questionnaire

Volume 1 - 2013

• Development of the COMPASS school health profile
• Methods for linking COMPASS student-level data over time
• School board and school recruitment procedures
• Baseline sampling and recruitment results
• Student-level data collection procedures
• Rationale for using active-information passive-consent permission protocol in COMPASS

back to top

Presentations

2018

• Wong, S.L., Leatherdale, S.T., Pickett, W. Data Sources for Youth Health: The Health Behaviour in School-aged Children (HBSC) Study and the COMPASS Study (Cannabis, Obesity, Mental health, Physical activity, Alcohol, Smoking, Sedentary behaviour). 2018 Health Canada Science Forum. Ottawa, ON. March 08, 2018.

• Cole AG, Leatherdale ST. (May 2018). Oh the products you’ll try: Examining tobacco and nicotine product transitions among a sample of Ontario secondary school students. Oral presentation given at the 2018 Tobacco Control Forum, annual CPHA conference, Montreal, QC.

• Cole AG, Aleyan S, Qian W, Leatherdale ST. (March 2018). Helping and harming: Evaluating school tobacco programs and policies after 4 years in the COMPASS study. Oral presentation given at the 2018 World Conference on Tobacco or Health, Cape Town, South Africa.

• Aleyan S, Cole AG, Qian W, Leatherdale ST. (February 2018). Risky Business: Examining cigarette smoking initiation among susceptible and non-susceptible e-cigarette users. Oral presentation given at the 2018 Society for Research on Nicotine and Tobacco Annual Meeting, Baltimore, MD.

• ​Cole AG, Chaurasia A, Kennedy RD, Leatherdale ST. (February 2018). The power of peers: Examining measures of susceptibility as predictors of alternative tobacco/nicotine product use. Poster presentation given at the 2018 Society for Research on Nicotine and Tobacco Annual Meeting, Baltimore, MD.

2017​

• Bredin C. (November 2017). The COMPASS Study: A Research Platform for Evaluating how Practical Changes to School Environments Affect Youth Health. Oral presentation at the Healthy School Communities National Forum, Ottawa, ON. 

• Bredin C. (October 2017). COMPASS System Overview. Oral presentation at the Child Health Locally Driven Collaborative Project (LDCP) Provincial Task Force meeting (#2), Toronto, ON.

• Godin K, Patte K, & Leatherdale ST. (June 2017). Promoting regular breakfast eating among Canadian adolescents: what role do school breakfast programs play? Oral presentation at the International Society of Behavioral Nutrition and Physical Activity 16^th Annual Meeting, Victoria, BC.

• Godin K, Chacon V, Barnoya J, & Leatherdale ST. (June 2017). Sugar-sweetened beverage consumption and the school food environment: An examination of secondary school students in Guatemala. Poster presentation at the International Society of Behavioral Nutrition and Physical Activity 16^th Annual Meeting, Victoria, BC.

• Cole AG, Aleyan S, Leatherdale ST. (June 2017). Evaluating the strength of school tobacco policies in Ontario and Alberta: Evidence from the COMPASS study. Poster presentation given at the Public Health 2017, annual CPHA conference, Halifax, NS.

• Cole AG, Kennedy RD, Chaurasia A, Leatherdale ST. (June 2017). Evaluating the susceptibility construct for cigarette, e-cigarette, and any tobacco or e-cigarette use among Ontario youth. Oral presentation given at the Public Health 2017, annual CPHA conference, Halifax, NS.

• Patte KA, Henderson J, Faulkner G, Elton-Marshall T, Sabiston C, Bredin C, Battista K, Mann R, Cairney J, Leatherdale ST. (June 2017). Development of a mental health module for the COMPASS system: improving youth mental health trajectories. Oral presentation at Public Health 2017, annual CPHA conference, Halifax.

• Aleyan S, Chaurasia A, Hammond D, Leatherdale ST. (June 2017). Evaluating the impact of  changes in tobacco interventions among never smokers between Y2 and Y3 of the COMPASS Study. Oral presentation at Public Health 2017, annual CPHA conference, Halifax.

• Aleyan S, Qian W, Leatherdale ST. (June 2017). A quasi-experimental evaluation of school-based marijuana use prevention programming changes on student's current marijuana use within the COMPASS study. Poster presentation given at the Public Health 2017, annual CPHA conference, Halifax, NS.

• Patte KA, Qian W, Leatherdale ST. (June 2017). Are today’s youth becoming increasingly sleep deprived? Findings from the COMPASS study. Poster presentation at Public Health 2017, annual CPHA conference, Halifax.

• Leatherdale ST. Natural experiment methodology in health promotion and chronic disease prevention research and practice. Public Health Agency of Canada (PHAC) – Science Integration Division Seminar. Ottawa, ON. May 17, 2017.

• Leatherdale ST. Research designs for natural experiments. Public Health Agency of Canada (PHAC) – Science Integration Division Seminar. Ottawa, ON. May 17, 2017. May 17, 2017.

• Leatherdale ST. The COMPASS system: a research platform for evaluating natural experiments related to program, policy, or built environment changes among youth populations. Public Health Agency of Canada (PHAC) – Science Integration Division Seminar. Ottawa, ON. May 17, 2017.

• Cole AG, Kennedy R, Chaurasia A, Leatherdale ST. (March 10, 2017). Identifying students susceptible to using tobacco products and e-cigarettes: An evaluation of current measures. Poster presented at the 2017 Society for Research on Nicotine and Tobacco Annual Meeting, Florence, Italy.

• Cole AG, Kennedy R, Chaurasia A, Leatherdale ST. (March 10, 2017). Identifying behavioural clusters of tobacco product and e-cigarettes use: A repeat cross-sectional analysis. Poster presented at the 2017 Society for Research on Nicotine and Tobacco Annual Meeting, Florence, Italy.

• Cole AG, Chacon V, Barnoya J, Leatherdale ST. (March 9, 2017). Examining the prevalence of e-cigarette use and factors associated with e-cigarette use among a sample of youth in Guatemala. Poster presented at the 2017 Society for Research on Nicotine and Tobacco Annual Meeting, Florence, Italy.

• Vine MM, Butler A, Harrington DW, Patte K, Godin K, Leatherdale ST. Investigating secondary schools’ compliance with provincial nutrition policies in Ontario and Alberta: A study of school vending machines. Canadian Association of Geographers Annual Meeting, York University, May 29-June 2, 2017.

• Leatherdale ST. The COMPASS system: a research platform for evaluating natural experiments related to program, policy, or built environment changes among youth populations. Presented at CHU de Quebec, Wednesday 18 January 2017, Quebec City, QC

• Bredin C. COMPASS Data Collection Protocols. Presented at the Centre intégré universitaire de santé et de services sociaux (CIUSSS) de la capitale-nationale, Tuesday 17 January 2017, Quebec City, QC

• Leatherdale ST. The COMPASS system: a research platform for evaluating natural experiments related to program, policy, or built environment changes among youth populations. Presented at the Centre intégré universitaire de santé et de services sociaux (CIUSSS) de la capitale-nationale, Tuesday 17 January 2017, Quebec City, QC

• Leatherdale ST. The COMPASS system: a research platform for evaluating natural experiments related to program, policy, or built environment changes among youth populations. Presented at Université Laval, Monday 16 January 2017, Quebec City, QC

2016

• Vine MM, Harrington DW, Butler A, Patte KA, Godin K, Leatherdale ST. School nutrition policy compliance in Ontario and Alberta: An environmental assessment of secondary school vending machine data from the COMPASS Study. The Canadian Association of Geographers – Ontario Division (CAGONT) Conference, October 29, 2016, Waterloo, ON.

• Vine MM, Harrington DW, Butler A, Patte KA, Godin K, Leatherdale ST. Secondary school compliance with the Ontario School Food and Beverage Policy: An exploration of vending machine contents using data from the Compass Study. Canadian Public Health Association Conference, Toronto, ON, June 13-16, 2016.

• Battista K, Dubin J, Leatherdale ST. (May 2016) Evaluating the Use of Multiple Imputation by Chained Equations for Longitudinal Survey Data: An Examination of BMI Outcomes from the COMPASS Study. Poster presented at the 2016 Statistical Society of Canada Student Conference, St. Catharines, ON.

• Vine MM, Butler A, Patte K, Harrington DW, Godin K, Leatherdale ST. (2016) Secondary school compliancy with the Ontario School Food and Beverage Policy: An exploration of vending machine contents using data from the Compass Study. Healthy Eating in Today’s Food Environment...Is it Possible? Hosted by the Nutrition Resource Centre, Toronto, ON, May 11, 2016.

• Cole AG, Qian W, Leatherdale ST (March 2016). Evaluating the impact of school-based tobacco interventions on changes to susceptibility to future smoking among never-smoking youth in the first two waves of the COMPASS study. Poster presented at the 2016 Society for Research on Nicotine and Tobacco Annual Meeting, Chicago, IL.

• Laxer RE, Cole AG, Mison S, Markham C, Leatherdale ST (2016). COMPASS & Ophea: Integrating research and practice to prevent chronic disease in youth. Workshop presented at the CDPAC’s 6^th Pan-Canadian Conference - Integrated Chronic Disease Prevention: The Value Proposition. February 24, 2016; Toronto, Ontario.

2015

• Cole AG, Bredin C, Chacón V, Barnoya J, Leatherdale ST. (November 2015). Building population health research capacity in Guatemala using the COMPASS system. Oral presentation given at the 22^nd Canadian Conference on Global Health, Montreal, QC.
• Cole AG, Leatherdale ST. (February 2015). Examining the impact of changes in school tobacco control policies and programs on current smoking and susceptibility to future smoking among youth in the first two waves of the COMPASS study: Looking back to move forward. Poster presented at the 2015 Society for Research on Nicotine and Tobacco Annual Meeting, Philadelphia, PA.
• Cole AG, Laxer RE, Leatherdale ST. (2015). Social Consequences of Overweight and Obesity among Ontario High School Students. Canadian Journal of Diabetes, 39, S67. Poster presentation at the Canadian Obesity Summit.
• Harvey A, Leatherdale ST. (2015). An examination of how school facilities are associated with physical activity among youth in the COMPASS study. Poster presentation at the 4th Canadian Obesity Summit. Toronto, ON.
• Jones A, Hammond D, Reid JL, Leatherdale ST. (2015). Where should we eat? Lunch source and dietary measures among youth during the school week. Poster presentation at the 4th Canadian Obesity Summit. Toronto, ON.
• Laxer RE,  Leatherdale ST. (2015). The Role of Knowledge Brokers in Preventing Weight Gain Among High School Students. Abstracts/Can J Diabetes, 39(S33eS34), S33eS34. Oral presentation at the Canadian Obesity Summit.
• Laxer RE, Qian W, Leatherdale ST. (2015). Do 'healthier' students exhibit higher academic achievement and school connectedness? Poster presentation at the International Society for Behavioral Nutrition and Physical Activity conference. Edinburgh, Scotland.
• Leatherdale ST, Laxer RE. (2015). Do changes in school eating behaviour policies or programs impact student fruit and vegetable consumption? Oral presentation at the International Society for Behavioral Nutrition and Physical Activity conference. Edinburgh, Scotland.

2014

• Leatherdale ST. (2014). The COMPASS Study: a cohort of obesity, marijuana use, physical activity, alcohol use, smoking and sedentary behaviour among youth. Presented at the Residencia de Investigación en Enfermedades Crónicas. January 16, 2014; Guatemala.
• Laxer RE, Leatherdale ST. (2014). The COMPASS study: a longitudinal study designed to evaluate changes in programs, policies and the built environment on physical activity and other modifiable risk behaviours among youth. Poster presented at the 2014 Global Summit on the Physical Activity of Children, 21 May 2014; Toronto, Ontario.
• Laxer R,  Leatherdale ST. (2014). The COMPASS study: a longitudinal study designed to evaluate changes in programs, policies, and the built environment on overweight, obesity, and related health behaviours among youth. Poster presented at the Canadian Obesity Student Meeting at the University of Waterloo, June 2014; 2nd place for PhD posters).

2013

• Laxer, RE, Leatherdale ST. (2013). Reliability and validity of weight status and diet measures in the 'Cohort study on obesity, marijuana use, physical activity, alcohol use, smoking and sedentary behaviour (COMPASS)questionnaire.' Canadian Journal of Diabetes, 37, S284 (The Canadian Obesity Summit).
• Laxer RE, Leatherdale, ST. (2013). The COMPASS Study: A new cohort study examining how changes in school policies, programs, and the built environment are associated with obesity and correlates of obesity among students over time. Canadian Journal of Diabetes, 37, S230 (The Canadian Obesity Summit).
• Wagner M, Carson V, Leatherdale ST. (2014). COMPASS study: A program of research designed to improve youth health through school-based programs, policies and build environment resources. Poster presented at the Shaping the Future 2014 Conference. January 25, 2014; Kananaskis, Alberta.

Stakeholder reports

2024

• Public Health Ontario's Summary Report: Health Behaviours of Ontario Secondary School Students during the COVID-19 Pandemic

2022

• Public Health Ontario's Youth Health Trends in Ontario: Cannabis Since Legalization
• Santé publique Ontario: Le Cannabis depuis la légalisation : Tendances en Matière de Santé des Jeunes en Ontario
• 2022 ParticipACTION Report Card on Physical Activity for Children and Youth (Pdf)

2021

• Public Health Ontario's Summary Report: Health Behaviours of Ontario Secondary School Students during Wave 1 of the COVID-19 Pandemic
• Public Health Ontario's Youth Health Trends in Ontario: Vaping

2020

• Alberta’s 2020 Nutrition Report Card on Food Environments for Children and Youth
• The 2020 ParticipACTION Report Card on Physical Activity for Children and Youth 

2019

• Usage de la cigarette électronique dans les écoles secondaires de la région de la capitale-nationale
• Albert's 2019 Report Card on Healthy Food Environments for Children and Youth

2018

• Alberta’s 2018 Report Card on Healthy Food Environments for Children and Youth

2017

• Alberta’s 2017 Report Card on Healthy Food Environments for Children and Youth

2016

• Alberta’s 2016 Report Card on Healthy Food Environments for Children and Youth

2015

• Alberta’s 2015 Report Card on Healthy Food Environments for Children and Youth
   

back to top