At Wave 1, past 30-day smoking ranged from 17.4% (Black) to 30.4% (White) among men and 12.5% (Black) to 32.8% (White) among females. Smoking in the past 30 days increased across the four waves of the study for all groups except White females, in which it peaked at Wave 2 and thereafter decreased. Among smokers, number of cigarettes smoked on days smoked peaked in Wave 3 for all groups except Black males.
