Index of statistical tests

¹Difference in overall smoking prevalence between 2019 and 2020: p=0.02^W

²Difference in non-daily smoking prevalence between 2019 and 2020: p=0.008^W

³Difference in daily smoking prevalence between 2019 and 2020: p=0.26^W

⁴Overall effect of time (1999-2020) on smoking prevalence: pF

⁵Difference in overall smoking prevalence between males and females in 2020: pW

⁶Difference in daily smoking prevalence between males and females in 2017: p=0.005^W

⁷Difference in non-daily smoking prevalence between males and females in 2017: p=0.005^W

⁸Difference in current smoking prevalence among females between 2019 and 2020: p=0.004^W

⁹Difference in current smoking prevalence among males between 2019 and 2020: p=0.55^W

¹⁰Difference in current smoking prevalence between age groups in 2020: pW

¹¹Difference in consumption between 2019 and 2020: p=0.32^W

¹²Overall effect of time (1999-2020) on consumption: pF

¹³Difference in consumption between males and females in 2020: p=0.001^W

¹⁴Difference in consumption among males between 2019 and 2020: p=0.74^W

¹⁵Difference in consumption among females between 2019 and 2020: p=0.68^W

¹⁶Difference in consumption between age groups in 2020: p=0.04^W

¹⁷Difference in smoking prevalence between provinces in 2020: p=0.02^W

¹⁸Difference in consumption between provinces in 2020: p=0.51^W

¹⁹Difference in cigar use between males and females in 2020: pW

²⁰Difference in cigarillo use between males and females in 2020: pW

²¹Difference in cigarillo use between (3) age groups in 2020: p=0.03^W

²²Difference in cigar use between (2) age groups in 2020: p=0.11^W

²³Difference in cigar/cigarillo use between provinces in 2020: p=0.95^W

²⁴Difference in quitter percentage between males and females in 2020: p=0.08^W

²⁵Difference in ever smoking between males and females in 2020: pW

²⁶Difference in current smoking between males and females in 2020: pW

²⁷Difference in quitter percentage between age groups in 2020: pW

²⁸Difference in having made a quit attempt in the past year between 2019 and 2020: p=0.86^W

²⁹Difference in having made a quit attempt in the past year between males and females in 2020: p=0.20^W

³⁰Difference in having made a quit attempt in the past year between age groups in 2020: p=0.42^W

³¹Difference in quit success (among past-year attempters) between 2019 and 2020: p=0.16^W

³²Difference in quit success (among past-year attempters) between males and females in 2020: p=0.92^W

³³Difference in quit success (among past-year attempters) between (3) age groups in 2020: p=0.01^W

³³Difference in ever trying a cigarette between males and females in 2018-19, grades 7-9: p=0.61^W

³⁴Difference in ever trying a cigarette between 2016-17 and 2018-19, grades 7-9: p=0.43^W

³⁵Difference in ever trying a cigarette between provinces in 2018-19, grades 7-9: pW

³⁶Difference in ever smoking a whole cigarette between 2019 and 2020, age 15-19: p=0.84^W

³⁷Difference in ever smoking a whole cigarette between males and females in 2020, age 15-19: p=0.01^W

³⁸Difference in smoking prevalence between 2016-17 and 2018-19, grades 7-9: p=0.70^W

³⁹Difference in non-daily smoking prevalence between 2016-17 and 2018-19, grades 7-9: p=0.66^W

⁴⁰Difference in daily smoking prevalence between 2016-17 and 2018-19, grades 7-9: p=0.90^W

⁴¹Difference in smoking prevalence between 2019 and 2020, age 15-19:p=0.047^W

⁴²Difference in smoking prevalence between males and females in 2018-19, grades 7-9: p=0.07^W

⁴³Difference in smoking prevalence between males and females in 2020, age 15-19: p=0.14^W

⁴⁴Difference in smoking prevalence between provinces in 2018-19, grades 7-9: pW

⁴⁵Difference in consumption between 2016-17 and 2018-19, grades 7-9: p=0.44^W

⁴⁶Difference in consumption between males and females in 2018-19, grades 7-9: p=0.08^W

⁴⁷Difference in cigar/cigarillo use between 2016-17 and 2018-19, grades 7-9: p=0.37^W

⁴⁸Difference in waterpipe use between 2016-17 and 2018-19, grades 7-9: p=0.28^W

⁴⁹Difference in smokeless tobacco use between 2016-17 and 2018-19, grades 7-9: p=0.002^W

⁵⁰Difference in smokeless tobacco use between males and females in 2018-19, grades 7-9: p=0.0002^W

⁵¹Difference in cigar/cigarillo use between males and females in 2018-19, grades 7-9: p=0.22^W

⁵²Difference in waterpipe use between males and females in 2018-19, grades 7-9: p=0.66^W

⁵³Difference in smokeless tobacco use between provinces in 2018-19, grades 7-9: pW

⁵⁴Difference in cigar/cigarillo use between provinces in 2018-19, grades 7-9: pW

⁵⁵Difference in waterpipe use between provinces in 2018-19, grades 7-9: p=0.0001^W

⁵⁶Difference in ever having made a quit attempt between 2016-17 and 2018-19, grade 7-9 smokers: p=0.03^W

⁵⁷Difference in having made a quit attempt in the past 12 months between 2019 and 2020, smokers age 15-19: p=0.64^W

⁵⁸Difference in prevalence of ever e-cigarette use between 2019 and 2020:p=0.58^W

⁵⁹Difference in past 30-day e-cigarette prevalence between 2019 and 2020:p=0.85^W

⁶⁰Difference in daily e-cigarette prevalence between 2019 and 2020:p=0.45^W

⁶¹Overall effect of time (2013-2020) on prevalence of ever e-cigarette use: p=0.02^F

⁶²Overall effect of time (2013-2020) on prevalence of past 30-day e-cigarette use: p=0.02^F

⁶³Overall effect of time (2015-2020) on prevalence of daily e-cigarette use: p=0.09^F

⁶⁴Difference in mean number of days using e-cigarettes in past month among past 30-day users, between 2019 and 2020:p=0.10^W

⁶⁵Difference in prevalence of ever e-cigarette use between males and females in 2020:pW

⁶⁶Difference in past 30-day e-cigarette prevalence between males and females in 2020:p=0.0003^W

⁶⁷Difference in prevalence of daily e-cigarette use between males and females in 2020:p=0.004^W

⁶⁸Difference in mean number of days using e-cigarettes in past month among past 30-day users, between males and females in 2020:p=0.03^W

⁶⁹Difference in prevalence of ever e-cigarette use between age groups in 2020:pW

⁷⁰Difference in prevalence of ever e-cigarette use between 2019 and 2020, age 15-19:p=0.73^W

⁷¹Difference in prevalence of ever e-cigarette use between 2019 and 2020, age 20-24:p=0.04^W

⁷²Difference in prevalence of ever e-cigarette use between 2019 and 2020, age 25-34:p=0.85^W

⁷³Difference in prevalence of ever e-cigarette use between 2019 and 2020, age 35-44:p=0.045^W

⁷⁴Difference in prevalence of ever e-cigarette use between 2019 and 2020, age 45+:p=0.32^W

⁷⁵Difference in past 30-day e-cigarette prevalence between age groups in 2020:pW

⁷⁶Difference in past 30-day e-cigarette prevalence between 2019 and 2020, age 15-19:p=0.65^W

⁷⁷Difference in past 30-day e-cigarette prevalence between 2019 and 2020, age 20-24:p=0.17^W

⁷⁸Difference in past 30-day e-cigarette prevalence between 2019 and 2020, age 25-34:p=0.57^W

⁷⁹Difference in past 30-day e-cigarette prevalence between 2019 and 2020, age 35-44:p=0.27^W

⁸⁰Difference in past 30-day e-cigarette prevalence between 2019 and 2020, age 45+:p=0.31^W

⁸¹Difference in past 30-day e-cigarette prevalence among ever-users, between age groups in 2020: pW

⁸²Difference in prevalence of daily e-cigarette use between age groups (4) in 2020:p=0.001^W

⁸³Difference in daily e-cigarette prevalence between 2019 and 2020, age 15-19:p=0.53^W

⁸⁴Difference in daily e-cigarette prevalence between 2019 and 2020, age 20-24:p=0.77^W

⁸⁵Difference in daily e-cigarette prevalence between 2019 and 2020, age 25-44:p=0.57^W

⁸⁶Difference in daily e-cigarette prevalence between 2019 and 2020, age 45+:p=0.63^W

⁸⁷Difference in prevalence of daily e-cigarette use among past 30-day users, between age groups (4) in 2020: p=0.02^W

⁸⁸Difference in prevalence of ever e-cigarette use between males and females in 2020, age 15-19:p=0.90^W

⁸⁹Difference in prevalence of ever e-cigarette use between males and females in 2020, age 20-24:pW

⁹⁰Difference in prevalence of ever e-cigarette use between males and females in 2020, age 25-34:p=0.01^W

⁹¹Difference in prevalence of ever e-cigarette use between males and females in 2020, age 35-44:p=0.0008^W

⁹²Difference in prevalence of ever e-cigarette use between males and females in 2020, age 45+:p=0.054^W

⁹³Difference in past 30-day e-cigarette prevalence between males and females in 2020, age 20-24:p=0.01^W

⁹⁴Difference in past 30-day e-cigarette prevalence between males and females in 2020, age 25-44:p=0.005^W

⁹⁵Difference in past 30-day e-cigarette prevalence between males and females in 2020, age 15-19:p=0.73^W

⁹⁶Difference in past 30-day e-cigarette prevalence between males and females in 2020, age 45+:p=0.53^W

⁹⁷Difference in daily e-cigarette prevalence between males and females in 2020, age 15-24:p=0.002^W

⁹⁸Difference in daily e-cigarette prevalence between males and females in 2020, age 25+:p=0.06^W

⁹⁹Difference in prevalence of ever e-cigarette use between provinces in 2020:p=0.57^W

¹⁰⁰Difference in past 30-day e-cigarette prevalence between provinces in 2020:p=0.58^W

¹⁰¹Difference in prevalence of ever e-cigarette use between provinces in 2020, age 15-19:p=0.07^W

¹⁰²Difference in prevalence of ever e-cigarette use by smoking status in 2020:pW

¹⁰³Difference in past 30-day e-cigarette prevalence by smoking status in 2020:pW

¹⁰⁴Difference in daily e-cigarette prevalence by smoking status in 2020:pW

¹⁰⁵Difference in prevalence of ever e-cigarette use between male and female smokers in 2020:p=0.02^W

¹⁰⁶Difference in past 30-day e-cigarette prevalence between male and female smokers in 2020:p=0.23^W

¹⁰⁷Difference in daily e-cigarette prevalence between male and female smokers in 2020:p=0.62^W

¹⁰⁸Difference in prevalence of ever e-cigarette use between male and female non-smokers in 2020:pW

¹⁰⁹Difference in past 30-day e-cigarette prevalence between male and female non-smokers in 2020:p=0.004^W

¹¹⁰Difference in daily e-cigarette prevalence between male and female non-smokers in 2020:p=0.001^W

¹¹¹Difference in prevalence of ever e-cigarette use between age groups, among smokers in 2020:pW

¹¹²Difference in prevalence of ever e-cigarette use between age groups, among non-smokers in 2020:pW

¹¹³Difference in past 30-day e-cigarette prevalence between age groups (2), among smokers in 2020:pW

¹¹⁴Difference in past 30-day e-cigarette prevalence between age groups (4), among non-smokers in 2020:pW

¹¹⁵Difference in daily e-cigarette prevalence between age groups (2), among smokers in 2020:pW

¹¹⁶Difference in daily e-cigarette prevalence between age groups (4), among non-smokers in 2020:pW

¹¹⁷Difference in smoking prevalence between males and females, among ever e-cigarette users in 2020:p=0.07^W

¹¹⁸Difference in smoking prevalence between males and females, among past 30-day e-cigarette users in 2020:p=0.40^W

¹¹⁹Difference in smoking prevalence between males and females, among daily e-cigarette users in 2020:p=0.21^W

¹²⁰Difference in smoking prevalence between age groups, among ever e-cigarette users in 2020:pW

¹²¹Difference in smoking prevalence between age groups (2), among past 30-day e-cigarette users in 2020:pW

¹²²Difference in never smoking between age groups (2), among daily e-cigarette users in 2020:p=0.003^W

¹²³Difference in former smoking between age groups (2), among daily e-cigarette users in 2020:pW

¹²⁴Difference in daily smoking prevalence among ever e-cigarette users between 2019 and 2020:p=0.18^W

¹²⁵Difference in non-daily smoking prevalence among ever e-cigarette users between 2019 and 2020:p=0.16^W

¹²⁶Difference in former smoking prevalence among ever e-cigarette users between 2019 and 2020:pW

¹²⁷Difference in never smoking prevalence among ever e-cigarette users between 2019 and 2020:p=0.08^W

¹²⁸Difference in non-daily smoking prevalence among past 30-day e-cigarette users between 2019 and 2020:p=0.006^W

¹²⁹Difference in former smoking prevalence among past 30-day e-cigarette users between 2019 and 2020:p=0.03^W

¹³⁰Difference in daily smoking prevalence among past 30-day e-cigarette users between 2019 and 2020:p=0.08^W

¹³¹Difference in never smoking prevalence among past 30-day e-cigarette users between 2019 and 2020:p=0.07^W

¹³²Difference in current smoking prevalence among daily e-cigarette users between 2019 and 2020:p=0.12^W

¹³³Difference in former smoking prevalence among daily e-cigarette users between 2019 and 2020:p=0.17^W

¹³⁴ Difference in never smoking prevalence among daily e-cigarette users between 2019 and 2020:p=0.96^W

¹³⁵Difference in percentage of past 30-day e-cigarette users who reported using an e-liquid with nicotine on at least one day in the past 30 days between 2019 and 2020:p=0.92^W

¹³⁶Difference in percentage of past 30-day e-cigarette users who reported using an e-liquid with nicotine on at least one day in the past 30 days, by smoking status, in 2020:p=0.60^W

¹³⁷Difference in percentage of past 30-day e-cigarette users who reported using an e-liquid with nicotine on at least one day in the past 30 days between males and females in 2020:p=0.04^W

¹³⁸Difference in percentage of past 30-day e-cigarette users who reported using an e-liquid with nicotine on at least one day in the past 30 days between male and female non-smokers in 2020:p=0.04^W

¹³⁹Difference in percentage of past 30-day e-cigarette users who reported using an e-liquid with nicotine on at least one day in the past 30 days between male and female smokers in 2020:p=0.40^W

¹⁴⁰Difference in percentage of past 30-day e-cigarette users who reported that they used e-cigarettes for reasons related to quitting smoking, between males and females in 2020:p=0.17^W

¹⁴¹Difference in percentage of past 30-day e-cigarette users who reported that they attempted to quit vaping in the past 12 months between 2019 and 2020:p=0.80^W

¹⁴²Difference in percentage of past 30-day e-cigarette users who reported that they attempted to quit vaping in the past 12 months between males and females:p=0.72^W

¹⁴³Difference in percentage of past 30-day e-cigarette users who reported that they attempted to quit vaping in the past 12 months, by age group (3):pW

¹⁴⁴Difference in percentage of past 30-day e-cigarette users who reported that they attempted to quit vaping in the past 12 months, by smoking status:p=0.004^W

¹⁴⁵Difference in prevalence of ever e-cigarette use between 2016-17 and 2018-19, grades 7-9: pw

¹⁴⁶Difference in past 30-day e-cigarette prevalence between 2016-17 and 2018-19, grades 7-9: pw

¹⁴⁷Difference in prevalence of ever e-cigarette use between grades in 2018-19, grades 7-9:pW

¹⁴⁸Difference in past 30-day e-cigarette prevalence between grades in 2018-19, grades 7-9:pW

¹⁴⁹Difference in daily/almost daily e-cigarette prevalence between grades in 2018-19, grades 7-9:pW

¹⁵⁰Difference in prevalence of ever e-cigarette use between males and females in 2018-19, grades 7-9:p=0.17^W

¹⁵¹Difference in past 30-day e-cigarette prevalence between males and females in 2018-19, grades 7-9:p=0.11^W

¹⁵²Difference in daily/almost daily e-cigarette prevalence between males and females in 2018-19, grades 7-9:p=0.02^W

¹⁵³Difference in prevalence of ever e-cigarette use between provinces in 2018-19, grades 7-9:pW

¹⁵⁴Difference in past 30-day e-cigarette prevalence between provinces in 2018-19, grades 7-9:pW

¹⁵⁵Difference in in daily/almost daily e-cigarette prevalence between provinces in 2018-19, grades 7-9:pW

¹⁵⁶Difference in prevalence of ever e-cigarette use by smoking status in 2018-19, grades 7-9:pW

¹⁵⁷Difference in past 30-day e-cigarette prevalence by smoking status in 2018-19, grades 7-9:pW

¹⁵⁸Difference in daily/almost daily e-cigarette prevalence by smoking status in 2018-19, grades 7-9:pW

¹⁵⁹Difference in prevalence of ever e-cigarette use among current smokers between 2016-17 and 2018-19, grades 7-9: p=0.0001^w

¹⁶⁰Difference in prevalence of ever e-cigarette use among former smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶¹Difference in prevalence of ever e-cigarette use among experimental smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶²Difference in prevalence of ever e-cigarette use among never smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶³Difference in past 30-day e-cigarette prevalence among current smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶⁴Difference in past 30-day e-cigarette prevalence among former smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶⁵Difference in past 30-day e-cigarette prevalence among experimental smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶⁶Difference in past 30-day e-cigarette prevalence among never smokers between 2016-17 and 2018-19, grades 7-9: pw

¹⁶⁷Difference in percentage who perceived “easy” or “very easy” access to e-cigarettes with nicotine between ever e-cigarette users vs. non-users in 2018-19, grades 7-9:pW

¹⁶⁸Difference in percentage who perceived “easy” or “very easy” access to e-cigarettes without nicotine between ever e-cigarette users vs. non-users in 2018-19, grades 7-9:pW

¹⁶⁹Difference in percentage who perceived “no risk” of using e-cigarettes with nicotine once in a while between ever e-cigarette users vs. non-users in 2018-19, grades 7-9:pW

¹⁷⁰Difference in percentage who perceived “no risk” of using e-cigarettes without nicotine once in a while between ever e-cigarette users vs. non-users in 2018-19, grades 7-9:pW

¹⁷¹Difference in percentage who perceived “no risk” of using e-cigarettes with nicotine on a regular basis between ever e-cigarette users vs. non-users in 2018-19, grades 7-9:p=0.005^W

¹⁷²Difference in percentage who perceived “no risk” of using e-cigarettes without nicotine on a regular basis between ever e-cigarette users vs. non-users in 2018-19, grades 7-9:pW