1 = Men
2 = Women

Current Cig Smoker Y/N (1)
0 = No
1 = Yes

Cigarettes per day (1)
0 = not a current smoker

Diabetic Y/N (1)
0 = Not a diabetic
1 = Diabetic

Anti-hypertensive meds Y/N (1)
0 = Not currently used
1 = currently used

Prevalent CHD (MI,AP,CI) (1)
0 = Free of CHD
1 = Prevalence of CHD

0 = CHD Event Did Not Occur
1 = CHD Event Did Occur