Table 4 Relative risk of lung cancer and fitted models, underground Newfoundland fluorspar miners, by cumulative radon progeny exposure and smoking status [6]
From: Radon exposure and lung cancer: risk in nonsmokers among cohort studies
Smoking status | Â | Cumulative radon progeny exposure (WLM) | |||
|---|---|---|---|---|---|
<500 | 500– < 1500 | 1500– < 2500 | 2500+ | ||
Non-current | Deaths | 6 | 7 | 4 | 2 |
RR | 1.0 | 4.80 | 5.17 | 5.22 | |