Table 2.

Additional Demographic and Employment Characteristics of the United AutoWorkers–General Motors Cohort (n = 38,666), 1941–1994

Characteristic	Mean (SD)
Age at baseline, years	30.8 (9.1)
No. of years worked	16.2 (9.5)
Length of follow-up, years	24.5 (11.2)
Age at death from cardiovascular disease, years	64.9 (12.2)
Age at death from ischemic heart disease, years	64.4 (11.7)
Age at death from acute myocardial infarction, years	62.7 (11.6)
Age at death from cerebrovascular disease, years	67.0 (12.9)
Age at death from any cause, years	62.5 (13.5)
Proportion of year taken off (among person-years)	0.097 (0.244)
Proportion of year taken off if >0 (among person-years)	0.341 (0.354)

Abbreviation: SD, standard deviation.