a Self-reported leisure-time physical activity was assessed at each CARDIA
examination (examination year 0, 2 5, 7, 10, 15, 20, 25) (see Appendix table 1 for
description of the elements included in the score).
b Participants reporting smoking 1 or more cigarette per day at the CARDIA
examination were considered smokers. Ex-smokers were participants not smoking at
baseline and reporting having smoked prior to baseline and participants smoking
at baseline and not smoking at the considered CARDIA examination.