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Title: Risk factors for chronic obstructive pulmonary disease mortality in Chinese adults.
Author: Reilly KH, Gu D, Duan X, Wu X, Chen CS, Huang J, Kelly TN, Chen J, Liu X, Yu L, Bazzano LA, He J.
Journal: Am J Epidemiol; 2008 Apr 15; 167(8):998-1004. PubMed ID: 18256446.
Abstract:
Chronic obstructive pulmonary disease mortality and risk factors were studied in a nationally representative sample of 169,871 Chinese men and women aged 40 years or older. Baseline data were collected in 1991 by using a standard protocol, and a follow-up evaluation was conducted in 1999-2000, with a response rate of 93.4%. Age-standardized mortality (per 100,000 person-years) was 179.9 for men and 141.3 for women. After adjustment for important covariables, the respective relative risks of chronic obstructive pulmonary disease-related mortality for baseline risk factors in men and women were 2.80 (95% confidence interval (CI): 2.64, 2.98) and 2.71 (95% CI: 2.53, 2.89) for each 10-year increase in age, 0.84 (95% CI: 0.74, 0.95) and 1.44 (95% CI: 1.07, 1.95) for alcohol consumption, 1.18 (95% CI: 1.04, 1.35) and 1.77 (95% CI: 1.45, 2.15) for >/=20 pack-years of smoking, 2.37 (95% CI: 1.91, 2.94) and 2.47 (95% CI: 1.66, 3.67) for non-high-school graduation, 1.57 (95% CI: 1.38, 1.79) and 1.35 (95% CI: 1.17, 1.56) for physical inactivity, 2.66 (95% CI: 2.34, 3.02) and 2.60 (95% CI: 2.25, 3.00) for underweight, 1.39 (95% CI: 1.23, 1.57) and 1.73 (95% CI: 1.50, 2.00) for living in northern China, and 2.14 (95% CI: 1.86, 2.46) and 1.79 (95% CI: 1.55, 2.07) for living in rural China. This study indicated that cigarette smoking, low educational level, physical inactivity, and underweight are important modifiable risk factors for chronic obstructive pulmonary disease-related mortality in China.

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