| Total Population n = 1393 |  | Never smokers n = 622 |  | ||||
---|---|---|---|---|---|---|---|---|
 | Case, n | Control, n | ORa | 95%CI | Case, n | Control, n | ORb | 95%CI |
 | 445 | 948 |  |  | 156 | 466 |  |  |
ETS Exposure | Â | Â | Â | Â | Â | Â | Â | Â |
   None | 29 | 88 | Refc |  | 23 | 68 | Refd |  |
   At home Adult and/or Child | 375 | 772 | 1.2 | 0.7-1.9 | 109 | 341 | 1.1 | 0.6-1.9 |
Childhood | 333 | 672 | 1.1 | 0.7-1.9 | 93 | 298 | 1.0 | 0.6-1.8 |
Adulthood | 226 | 439 | 1.0 | 0.6-1.7 | 50 | 247 | 1.0 | 0.5-2.0 |
   At work | 259 | 463 | 1.3 | 0.9-1.9 | 69 | 179 | 1.2 | 0.7-2.1 |
< 10 years | 73 | 194 | 1.1 | 0.8-1.6 | 32 | 90 | 1.3 | 0.8-2.2 |
> 10 years | 176 | 261 | 1.2 | 0.9-1.6 | 37 | 86 | 1.2 | 0.7-2.0 |
   At both home and work | 226 | 405 | 1.4 | 0.9-2.2 | 50 | 142 | 1.2 | 0.7-2.1 |