Table 1

 Demographic summary of the cohort by smoking status

TotalSmokerEx-smokerNon-smoker
Number of subjects (%)64319 (100.0)25848 (40.2)6515 (10.1)31956 (49.7)
Person years68768129007662785334821
Mean (SD) age (years)46.5 (11.8)47.8 (12.0)49.0 (11.9)45.0 (11.3)
Drinking
    Number9604621211732219
    Prevalence (%)14.924.018.06.9
Number of death
    All causes534633933481605
    Non-intentional injuries52333324166