The great majority of the sample (90.5%) did not change their smoking status as never-, former, or current smoker, between waves 1 and 2 (table 3). Among the remaining 9.5%, over half (5.3%) had shifted from being current smokers to former smokers; more than a fourth (2.6%) were never smokers in wave 1 who became current smokers in wave 2; and a smaller proportion (<2%) who were former smokers in wave 1 relapsed to smoking in wave 2.
