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.

From: Impact of cooking oil fume exposure and fume extractor use on lung cancer risk in non-smoking Han Chinese women

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

        
  1. Abbreviations: aOR, adjusted odds ratio; OR, odds ratio; CI, confidence interval.
  2. 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.
  3. b*Indicates that the 95% CI of the OR does not include 1.