The varenicline and placebo cohorts comprised 52.0% and 53.0% women, aged mean 51.6 (SD, 11.9) and 52.4 (SD, 11.0) years, they smoked 12.9 (SD, 6.9) and 12.2 (SD, 6.2) cigarettes per day, 16.0% and 17.5% used other types of tobacco, 87.7% and 83.0% smoked menthol cigarettes, and 79.0% and 83.5% had attempted to quit in the past year, respectively
For adult smokers aged 18 and older, there were significant increases in menthol cigarette use from 2008 to 2014
Mortier GR, Cohn DH, Cormier-Daire V, Hall C, Krakow D, Mundlos S, et al
Cigarette butts have made up 30-40% of annual waste picked up international urban and coastal clean-ups