All subjects | Self-respondents only | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ETS from co-residents | Controls | Cases | Controls | Cases | ||||||||
Categories | N=436 | N=44 | OR* | 95%CI | N=410 | N=32 | OR* | 95%CI | ||||
Never | 113 | 16 | 1 | (ref.) | 105 | 11 | 1 | (ref.) | ||||
Ever | 323 | 28 | 0.63 | 0.32 | 1.25 | 305 | 21 | 0.66 | 0.30 | 1.46 | ||
Person-years | ||||||||||||
1-21 coresident-yrs | 95 | 12 | 0.93 | 0.40 | 2.12 | 90 | 9 | 0.95 | 0.37 | 2.44 | ||
22+ coresident-yrs | 228 | 16 | 0.50 | 0.23 | 1.08 | 215 | 12 | 0.53 | 0.22 | 1.28 | ||
Duration | ||||||||||||
<=100 (hrs/d x yrs) | 126 | 13 | 0.75 | 0.34 | 1.69 | 118 | 11 | 0.89 | 0.36 | 2.19 | ||
>100 (hrs/d x yrs) | 197 | 15 | 0.54 | 0.25 | 1.20 | 187 | 10 | 0.51 | 0.20 | 1.27 | ||
Cumulative exposure | ||||||||||||
<=4 pack-yrs | 150 | 14 | 0.67 | 0.31 | 1.48 | 140 | 11 | 0.76 | 0.31 | 1.86 | ||
>4 pack-yrs | 173 | 14 | 0.60 | 0.27 | 1.34 | 165 | 10 | 0.58 | 0.23 | 1.47 | ||
Exposure only < 20 yrs age | 57 | 8 | 1.09 | 0.42 | 2.83 | 54 | 7 | 1.24 | 0.44 | 3.51 | ||
Exposure only >= 20 yrs age | 56 | 6 | 0.72 | 0.26 | 2.06 | 53 | 3 | 0.52 | 0.14 | 2.02 | ||
Exposure both < & >= age 20 | 210 | 14 | 0.48 | 0.22 | 1.05 | 198 | 11 | 0.52 | 0.21 | 1.29 |