Table 3 Small cell lung cancer risk stratified by tobacco consumption.

From: Occupation as a risk factor of small cell lung cancer

Variablesa

Cases

Controls

OR (95% CI)b

Global

 Never smokers

  0 years

27

310

1 (–)

  1–10 years in high-risk professions

1

6

2.28 (0.12; 14.25)

  > 10 years in high-risk professions

0

13

0 (0; 0)

 Moderate and heavy smokers

  0 years

245

380

8.22 (5.34; 13.11)

  1–10 years in high-risk professions

5

12

5.58 (1.65; 16.70)

  > 10 years in high-risk professions

19

21

12.19 (5.68; 26.38)

  1. aMissing information for 126 cases and 163 controls.
  2. bAdjusted by sex and indoor radon exposure.