title: Radon exposure and lung cancer: risk in nonsmokers among cohort studies.
abstract: Eleven cohorts of miners occupationally exposed to relatively high concentrations of radon showed a statistically significantly high risk of lung cancer, while three cohorts from the general population showed a relatively low concentration, but the results were not statistically significant. However, the risk of lung cancer tended to increase with increased radon exposure. The risk is likely to have been underestimated due to low statistical power. Therefore, additional well-designed studies on the risk of lung cancer in nonsmokers in the general population with relatively low concentrations of radon exposure are needed in the future. In addition, country-specific preventive policies are needed in order to actively reduce radon exposure and lung cancer incidence in nonsmokers.
authors.affiliation: Department of Occupational and Environmental Medicine, Yonsei University Wonju Severance Christian Hospital, 20 ilsan-ro, Wonju, Gangwon 220-701 South Korea.
authors.forename: Sung-Soo
authors.initials: SS
authors.lastname: Oh
authors.affiliation: Department of Occupational and Environmental Medicine, Yonsei University Wonju Severance Christian Hospital, 20 ilsan-ro, Wonju, Gangwon 220-701 South Korea.
authors.forename: Sangbaek
authors.initials: S
authors.lastname: Koh
authors.affiliation: Department of Occupational and Environmental Medicine, Yonsei University Wonju Severance Christian Hospital, 20 ilsan-ro, Wonju, Gangwon 220-701 South Korea.
authors.forename: Heetae
authors.initials: H
authors.lastname: Kang
authors.affiliation: Department of Occupational and Environmental Medicine, Yonsei University Wonju Severance Christian Hospital, 20 ilsan-ro, Wonju, Gangwon 220-701 South Korea.
authors.forename: Jonggu
authors.initials: J
authors.lastname: Lee