Table 3.
Odds ratios and 95% confidence intervals for cooking time-years and risk of lung cancer between cases and controls in the Taiwan GELAC study during 2002–2010.
| Cooking time-years | Crude model | Adjusted model | ||||||
|---|---|---|---|---|---|---|---|---|
| Controls (1273) | Cases (1288) | Controls (787) | Cases (1109) | |||||
| N (%) | N (%) | OR | 95% CI | N (%) | N (%) | aORa | 95% CI | |
| ≤10 | 204 (16.0) | 153 (11.9) | 1 | 148 (18.8) | 143 (12.9) | 1 | ||
| 11–60 | 378 (29.7) | 434 (33.7) | 1.53 | 1.19, 1.97*b | 239 (30.4) | 374 (33.7) | 1.63 | 1.20, 2.23* |
| 61–110 | 421 (33.1) | 395 (30.7) | 1.25 | 0.97, 1.61 | 252 (32.0) | 338 (30.5) | 1.67 | 1.12, 2.49* |
| 111–160 | 223 (17.5) | 239 (18.6) | 1.43 | 1.08, 1.89* | 121 (15.4) | 197 (17.8) | 2.14 | 1.19, 3.90* |
| >160 | 47 (3.7) | 67 (5.2) | 1.9 | 1.24, 2.93* | 27 (3.4) | 57 (5.1) | 3.17 | 1.34, 7.68* |
| Ptrend = 0.0297 | ||||||||
Abbreviations: aOR, adjusted odds ratio; OR, odds ratio; CI, confidence interval.
aaOR: The OR was adjusted for age, education, lung cancer in first-degree relatives, exposure to second-hand smoke at home and the workplace, exposure to second-hand smoke of relatives who smoked, history of hormone-replacement therapy, history of oral contraceptive use, homemaker status, and history of being a chef.
b*Indicates that the 95% CI of the OR does not include 1.