Prevalence and risk factors of chronic obstructive pulmonary disease in China (the China Pulmonary Health [CPH] study): a national cross-sectional study
Prevalence and risk factors of chronic obstructive pulmonary disease in China (the China Pulmonary Health [CPH] study): a national cross-sectional study
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DOI:
10.1016/s0140-6736(18)30841-9
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发表时间:
2018-04-28
期刊:
影响因子:
168.9
通讯作者:
He, Jiang
中科院分区:
文献类型:
--
作者:
Wang, Chen;Xu, Jianying;He, Jiang
Background Although exposure to cigarette smoking and air pollution is common, the current prevalence of chronic obstructive pulmonary disease (COPD) is unknown in the Chinese adult population. We conducted the China Pulmonary Health (CPH) study to assess the prevalence and risk factors of COPD in China.Methods The CPH study is a cross-sectional study in a nationally representative sample of adults aged 20 years or older from ten provinces, autonomous regions, and municipalities in mainland China. All participants underwent a post-bronchodilator pulmonary function test. COPD was diagnosed according to 2017 Global Initiative for Chronic Obstructive Lung Disease (GOLD) criteria.Findings Between June, 2012, and May, 2015, 57 779 individuals were invited to participate, of whom 50 991 (21 446 men and 29 545 women) had reliable post-bronchodilator results and were included in the final analysis. The overall prevalence of spirometry-defined COPD was 8 . 6% (95% CI 7 . 5-9 . 9), accounting for 99 . 9 (95% CI 76 . 3-135 . 7) million people with COPD in China. Prevalence was higher in men (11 . 9%, 95% CI 10 . 2-13 . 8) than in women (5 . 4%, 4 . 6-6 . 2; p< 0 . 0001 for sex difference) and in people aged 40 years or older (13 . 7%, 12 . 1-15 . 5) than in those aged 20-39 years (2 . 1%, 1 . 4-3 . 2; p< 0 . 0001 for age difference). Only 12 . 0% (95% CI 8 . 1-17 . 4) of people with COPD reported a previous pulmonary function test. Risk factors for COPD included smoking exposure of 20 pack-years or more (odds ratio [OR] 1 . 95, 95% CI 1 . 53-2 . 47), exposure to annual mean particulate matter with a diameter less than 2 . 5 mu m of 50-74 mu g/m(3) (1 . 85, 1 . 23-2 . 77) or 75 mu g/m(3) or higher (2 . 00, 1 . 36-2 . 92), underweight (body-mass index