Table 1. Sample Characteristics (N = 2,029).

Variable	Statistic
Standardized IEAA, Mean (S.D.)	0 (1)
Chronological Age, Mean (S.D.)	65.34 (7.10)
Non-Hispanic Black, Frequency (N)	0.32 (647)
Hispanic, Frequency (N)	0.20 (414)
Former Smoker, Frequency (N)	0.35 (714)
Current Smoker, Frequency (N)	0.10 (211)
Pack-Years Smoking, Mean (S.D.)	9.53 (18.55)
CHD Incidence, Frequency (N)	0.31 (646)
Lung Cancer Incidence, Frequency (N)	0.021 (43)
Person-Years, Total	28,688