Bar chart showing current smoking prevalence among males and females, grades 7 to 9 from 2018 to 2019, and age 15 to 19 in 2020. Trends described in text. Data table below with 95% confidence intervals.Smoking prevalence was not significantly different between male and female students in grades 7-9 in 2018-19.42 Among youth aged 15-19, smoking prevalence was significantly greater among males than females in 2020,43 although exactc estimates cannot be reported (Figure 7.5).

Over time, among 15- to 19-year-olds, prevalence patterns have shifted from higher estimates among females (from 1999 to 2003), to similar estimates for several years in the mid-2000s and then greater prevalence among males in the most recent decade (Figure 7.6).

Among students in grades 7-9, a similar pattern was observed, although with much smaller differences: females had slightly higher smoking rates from 1994 to 2004-05, followed by slightly higher rates among males, equalizing in the most recent waves (Figure 7.6).

Line graph showing current smoking prevalence (daily and non-daily) among males and females, grades 7 to 9, and age 15 to 19, from 1994 to 2020. Trends described in text. Data table below with 95% confidence intervals.