Table 1.

Summary of selected available demographic variables of the studied cohort

All (n = 788)Current (n = 469)Former (n = 319)
Age, y (95% CI)64.263.7-64.663.362.6-64.065.465.0-65.9
Pack-years (95% CI)48.246.1-50.249.046.6-51.446.843.1-50.5
  • Abbreviation: 95% CI, 95% confidence interval.