0 = female
1 = male

0 = non-smoker
1 = ex-smoker
2 = smoker

0 = never
1 = ever

0 = other causes
1 = acute and subacute forms of CHD
2 = chronic forms of CHD
3 = hemorrhagic stroke
4 = ischemic stroke
5 = undefined stroke
6 = CAD related congestive heart failure
7 = Non-CAD related congestive heart failure
8 = other CVD