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- Margaret Smith, Liming Li, Mareli Augustyn, Om Kurmi, Junshi Chen, Rory Collins, Yu Guo, Yabin Han, Jingxin Qin, Guanqun Xu, Jian Wang, Zheng Bian, Gang Zhou, Richard Peto, Zhengming Chen, and China Kadoorie Biobank collaborative group.
- Clinical Trial Service Unit and Epidemiological Studies Unit (CTSU), University of Oxford, Oxford, UK Margaret.smith@ctsu.ox.ac.uk.
- Eur. Respir. J. 2014 Jul 1;44(1):66-77.
AbstractIn China, the burden of chronic obstructive disease (COPD) is high in never-smokers but little is known about its causes in this group. We analysed data on 287 000 female and 30 000 male never-smokers aged 30-79 years from 10 regions in China, who participated in the China Kadoorie Biobank baseline survey (2004-2008). Prevalence of airflow obstruction (AFO) (pre-bronchodilator forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) <0.7 and below the lower limit of normal (LLN)) was estimated, by age and region. Cross-sectional associations of AFO (FEV1/FVC <0.7), adjusted for confounding, were examined. AFO prevalence defined as FEV1/FVC <0.7 was 4.0% in females and 5.1% in males (mean ages 51 and 54 years, respectively). AFO prevalence defined as FEV1/FVC
©ERS 2014. Notes
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