| Titre : | Residential radon and lung cancer risk in a high-exposure area of Gansu Province, China. (2002) |
| Auteurs : | ZUOYUAN WANG . (.) ; BING SHANG . (.) ; John-Djr BOICE ; Alina BRENNER ; Jisheng CAO ; Katherine-W CHEN ; Susan CONRATH ; HONGXING CUI . (.) ; Ruth-A KLEINERMAN ; LONGDE WANG . (.) ; Jay-H LUBIN ; Catherine METAYER ; SHOUZHI ZHANG . (.) ; SHUJIE LEI . (.) ; SUWEN LEI . (.) ; YING XIA . (.) ; Shurong ZHANG |
| Type de document : | Article |
| Dans : | American journal of epidemiology (vol. 155, n° 6, 2002) |
| Pagination : | 554-564 |
| Langues: | Anglais |
| Mots-clés : | Cancer ; Poumon ; Radon ; Exposition ; Santé environnementale ; Domicile ; Epidémiologie ; Facteur risque ; Homme ; Chine ; Asie ; Appareil respiratoire [pathologie] |
| Résumé : | [BDSP. Notice produite par INIST-CNRS KJHvR0xG. Diffusion soumise à autorisation]. In the general population, evaluation of lung cancer risk from radon in houses is hampered by low levels of exposure and by dosimetric uncertainties due to residential mobility. To address these limitations, the authors conducted a case-control study in a predominantly rural area of China with low mobility and high radon levels. Included were all lung cancer cases diagnosed between January 1994 and April 1998, aged 30-75 years, and residing in two prefectures. Randomly selected, population-based controls were matched on age, sex, and prefecture. Radon detectors were placed in all houses occupied for 2 or more years during the 5-30 years prior to enrollment. Measurements covered 77% of the possible exposure time. Mean radon concentrations were 230.4 Bq/m3 for cases (n=768) and 222.2 Bq/m3 for controls (n=1,659). Lung cancer risk increased with increasing radon level (p<0.001). When a linear model was used, the excess odds ratios at 100 Bq/m3 were 0.19 (95% confidence interval : 0.05,0.47) for all subjects and 0.31 (95% confidence interval : 0.10,0.81) for subjects for whom coverage of the exposure interval was 100%. Adjusting for exposure uncertainties increased estimates by 50%. Results support increased lung cancer risks with indoor radon exposures that may equal or exceed extrapolations based on miner data. |
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