Table 2 Lung cancer in miners according to smoking status [3]
From: Radon exposure and lung cancer: risk in nonsmokers among cohort studies
Group followed | Mean WLM | Person-years at risk | Lung Cancer | Attributable cancers | Ratio of risk in smokers and nonsmokers | |
|---|---|---|---|---|---|---|
Observed (95Â % CI) | Exp. | |||||
Nonsmokers | 31.7 | 5138 | 3 (0.7–9.3) | 0.3 | 16.6 | 1.6 |
Smokers | 29.7 | 9420 | 19 (12.1–29.4) | 11.7 | 26.1 | |
Total | 30.4 | 14,558 | 22 (14.6–32.5) | 12.0 | 22.6 |  |