0 = 25-34 years old
1 = 35-44 years old
2 = 45-54 years old
3 = 55-64 years old
4 = 65-74 years old
5 = 75+ years old

0 = 0-39 gm/day
1 = 40-79 gm/day
2 = 80-119 gm/day
3 = 120+ gm/day

0 = 0-9 gm/day
1 = 10-19 gm/day
2 = 20-29 gm/day
3 = 30+ gm/day

0 = control
1 = case

0 = <80gm/day
1 = >=80gm/day