Health consequences of sustained smoking cessation

To estimate the risk of dying from all causes and from specified smoking-related diseases in people who were ex-smokers at two consecutive examinations, compared with never smokers and with people who were ex-smokers at the first examination but who had resumed smoking at the following examination.A prospective cohort study.Three counties in Norway.A total of 23 560 men and 25 122 women, aged 20-49, screened for cardiovascular disease risk...