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[The risk factors of chronic obstructive pulmonary disease in Heilongjiang province]
Objective:
To study the prevalence and risk factors of chronic obstructive pulmonary disease (COPD) in Heilongjiang province.
Methods:
This was a population-based and cross-sectional survey on prevalence of COPD in Heilongjiang province from September 2013 to March 2014. The stratified-cluster-random sampling method was performed to collect the data from 4 478 people in 5 cities (Jixi, Daqing, Suihua, Yichun and Jiagedaqi). The subjects were interviewed with questionnaires and tested with spirometry. A post-bronchodilator FEV1/FVC<70% was defined as diagnostic of COPD.
Results:
Completed and qualified data were obtained from 4 059 participants. The average prevalence of COPD was 7.3% (urban 6.0%; rural 8.8%; men 8.6%; women 6.5%). When using SPSS18.0 for the single factors logistic regression analysis, results indicated that sex (OR = 0.700, 95%CI:0.540-0.907), age ≥ 50 (OR = 1.236, 95%CI:0.758-2.017), lower education level (OR = 1.551, 95%CI:0.929-2.590), biomass for cooking (compared with electricity, OR = 2.744, 95%CI:1.429-5.271), biomass (compared with centralized heat supply, OR = 1.229, 95%CI:0.120-12.546)and coal (compared with centralized heat supply, OR = 4.661, 95%CI:0.474-45.840) for heating, respiratory diseases (OR = 3.594, 95%CI:2.738-4.716), combined with cardiovascular disease (OR = 1.370, 95%CI:1.058-1.776) were the risk factors of COPD in Heilongjiang province.
Conclusion:
Higher risk for COPD was related with sex, age, education level, cooking fuel, heating methods, respiratory diseases and combined with cardiovascular disease.
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