Questionnaire screening for high-risk population of chronic obstructive pulmonary disease in a community
Objective To analyze the current status of screening for high-risk population with the Chronic Obstructive Pulmonary Disease Population Screener Questionnaire(COPD-PS)in a community,and to explore the validity of the questionnaire.Methods A random cluster sampling method was used to select 1,306 residents aged ≥35 years in a community in Shanghai in March-May 2023.COPD-PS was employed to perform the screening,and the contents included 5 scoring items like shortness of breath frequency,production of sputum,functional limitations due to breathing problems,smoking history and age.Demographic information,personal and family respiratory system disease histories were also investigated simultaneously.And residents with the score ≥5 points were defined as the population at high risk of COPD.Cronbach model,correlation analysis and factor analysis were applied to analyzing the reliability and validity of the scale.x2 test and logistic regression analysis were performed to analyze the distribution of high-risk population and risk factors.Results Analysis results based on the COPD-PS revealed that Cronbach's α was 0.72,and KMO was 0.76.The confirmatory factor analysis model had good fitting results for all indicators.The high-risk proportion of COPD among the surveyed population was 16.54％(95％CI:14.56％-18.67％).The proportion of high-risk population was relatively high among males,residents aged 60 years and above,residents with low education,the retired,residents having a history of smoking,residents having a previous history of respiratory system disease and residents having a family history of respiratory system disease(all P＜0.001).Logistic regression analysis displayed that advanced age(OR60-69years old=103.825,95％CI:40.417-266.710;OR≥70years old=110.634,95％CI:41.263-296.625),having a history of smoking(OR=3.272,95％CI:2.657-4.029)and having a previous history of respiratory system disease(OR=2.598,95％CI:1.737-3.885)were independent risk factors for high-risk COPD.Conclusion The COPD-PS is a brief and effective questionnaire which can identify individuals who are likely to have COPD in the general population,and it is suitable for community screening applications.Community screening for high-risk COPD should focus on people aged 60 years and above,having a history of smoking and having a previous history of respiratory system disease.
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