1 = NO CHD
2 = SUDDEN DEATH
3 = NONFATALMI
5 = FATAL MI
6 = OTHER CHD

DAY OF DEATH
1 = SUNDAY
2 = MONDAY
3 = TUESDAY
4 = WEDNSDAY
5 = THURSDAY
6 = FRIDAY
7 = SATURDAY
9 = MISSING

0 = ALIVE
1 = DEAD

Y = YES
N = NO