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Menstrual and Reproductive Factors in Association With Lung Cancer in Female Lifetime Nonsmokers

Cigarette smoking is irrefutably the strongest risk factor for lung cancer; however, approximately 25% of cases worldwide occur among nonsmokers. The age-adjusted annual incidence rate of lung cancer in Shanghai, a region where relatively few women smoke cigarettes, is one of the highest in the worl...

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Bibliographic Details
Published in:American journal of epidemiology 2008-12, Vol.168 (11), p.1319-1325
Main Authors: Weiss, Jocelyn M., Lacey, James V., Shu, Xiao-Ou, Ji, Bu-Tian, Hou, Lifang, Yang, Gong, Li, Honglan, Rothman, Nathaniel, Blair, Aaron, Gao, Yu-Tang, Chow, Wong-Ho, Zheng, Wei
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Language:English
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Summary:Cigarette smoking is irrefutably the strongest risk factor for lung cancer; however, approximately 25% of cases worldwide occur among nonsmokers. The age-adjusted annual incidence rate of lung cancer in Shanghai, a region where relatively few women smoke cigarettes, is one of the highest in the world. To help further elucidate the etiology of lung cancer among nonsmokers, the authors examined hormonal factors among women who were lifetime nonsmokers. They analyzed data from the prospective Shanghai Women's Health Study, which recruited Chinese women aged 40–70 years between 1996 and 2000 from selected urban communities. The current analysis included 71,314 women (n = 220 cases) who were lifetime nonsmokers and had no history of cancer at baseline. Later age at menopause (≥51 vs.
ISSN:0002-9262
1476-6256
DOI:10.1093/aje/kwn257