Survey and analyses of population at high risk of chronic obstructive pulmonary disease in China, 2014.
10.3760/cma.j.issn.0254-6450.2018.05.008
- VernacularTitle:2014年中国慢性阻塞性肺疾病高危人群现状调查与分析
- Author:
H L BAO
1
;
S CONG
;
N WANG
;
J FAN
;
Y J FENG
;
B H WANG
;
L H WANG
;
L W FANG
Author Information
1. Division of Respiratory Diseases Prevention and Control, National Center for Chronic and Non-communicable Disease Prevention and Control, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
- Publication Type:Journal Article
- Keywords:
Chronic obstructive pulmonary disease;
Cross-sectional study;
Mass screening;
Spirometry examination
- MeSH:
Adult;
Asian People/statistics & numerical data*;
China/epidemiology*;
Female;
Humans;
Male;
Prevalence;
Pulmonary Disease, Chronic Obstructive/ethnology*;
Risk Factors;
Rural Population;
Surveys and Questionnaires;
Urban Population
- From:
Chinese Journal of Epidemiology
2018;39(5):580-585
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To understand the distribution and characteristics of people aged ≥40 years who are at high risk of COPD in China and provide evidence for COPD prevention and control. Methods: The survey was conducted among the subjects selected through multi-stage stratified cluster sampling from 31 provinces (autonomous regions and municipalities) in China for 2014-2015 national chronic obstructive pulmonary disease surveillance. A total of 75 107 people aged ≥40 years in 125 surveillance points were surveyed in face to face interviews. Subjects who met at least one of the following conditions, including chronic respiratory symptoms, exposure to risk factors, medical history of respiratory diseases, and family history, were defined as population at high risk. The weighted proportion of the population at high risk of COPD and 95%CI were estimated by using complex sampling design. Results: Among eligible 74 296 subjects, the proportion of population at high risk of COPD was 89.5% (95%CI: 87.8%-91.2%). The proportion significantly increased with age (P<0.001). The proportion of the population at high risk was significantly higher in men than in women (P<0.001), and in rural area than in urban area (P<0.001). The highest proportion of population at high risk was observed in men in rural area in western China. The proportion of population at high risk of COPD who met at least two conditions was 32.0% (95%CI:29.7%-34.2%), the proportion of those who met at least three conditions was 7.4% (95%CI: 6.6%- 8.3%), and the proportion of those who met all the conditions was 1.5% (95%CI: 1.2%-1.8%). Among population at high risk of COPD, those who only had exposure to one risk factor accounted for 61.7% (95%CI: 59.8%-63.7%). Conclusion: About 90% of people aged ≥40 years in China are at high risk for COPD. It is necessary to conduct population-based screening for COPD and take comprehensive measures to reduce prevalence of risk factors.
