Figure 2. Prevalence (%) of adult males (right panel), and females (left panel), usually 15 to 18 years or older that smoke by sex in US, UK and Canada.

Note. Data from National Center for Health Statistics, 2008, 1965–2012 National Health Interview Survey (NHIS); Office for National Statistics, 2018, Adult Smoking habits in Great Britain; and Reid et al., 2017, Tobacco Use in Canada: Patterns and Trends, 2017 Edition.