Smoking cessation in a prospective study of healthy adult males: effects of age, time period, and amount smoked.


The present study examined effects on smoking cessation of three variables-chronological age, time period, and amount smoked-in 637 healthy male smokers aged 22-69 at baseline. Subjects were followed from 1962-1975 using life table procedures. Age was not significantly related to quitting rates (p = .150). The amount smoked effect approached significance (p… (More)