All subjects | Self-respondents only | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
ETS source | Controls | Cases | Controls | Cases | ||||||||
Categories | N=436 | N=44 | OR* | 95%CI | N=410 | N=32 | OR* | 95%CI | ||||
Parents | ||||||||||||
Never | 195 | 26 | 1 | (ref.) | 179 | 17 | 1 | (ref.) | ||||
Ever | 241 | 18 | 0.62 | 0.32 | 1.21 | 231 | 15 | 0.69 | 0.33 | 1.43 | ||
Person-years | ||||||||||||
1-21 parent-yrs | 135 | 10 | 0.62 | 0.28 | 1.36 | 129 | 8 | 0.65 | 0.27 | 1.57 | ||
22+ parent-yrs | 106 | 8 | 0.64 | 0.27 | 1.50 | 102 | 7 | 0.73 | 0.29 | 1.84 | ||
Duration | ||||||||||||
<=75 (hrs/d x yrs) | 119 | 9 | 0.64 | 0.28 | 1.46 | 114 | 8 | 0.74 | 0.31 | 1.79 | ||
>75 (hrs/d x yrs) | 122 | 9 | 0.61 | 0.27 | 1.38 | 117 | 7 | 0.63 | 0.25 | 1.59 | ||
Cumulative exposure | ||||||||||||
<=3 pack-years | 146 | 9 | 0.50 | 0.22 | 1.13 | 137 | 8 | 0.63 | 0.26 | 1.50 | ||
>3 pack-years | 95 | 9 | 0.86 | 0.37 | 1.99 | 94 | 7 | 0.79 | 0.31 | 2.02 | ||
Spouses | ||||||||||||
Never | 262 | 34 | 1 | (ref.) | 242 | 25 | 1 | (ref.) | ||||
Ever | 174 | 10 | 0.39 | 0.18 | 0.85 | 168 | 7 | 0.37 | 0.15 | 0.93 |