Prevalence And Risk Factors Of Chronic Obstructive Pulmonary Disease Among People Aged 60 Years And Over In Partial Rural Areas Of Baoying County,Yangzhou

Objective:To investigate the prevalence of chronic obstructive pulmonary disease(COPD)among people aged 60 and over in partial rural areas of Baoying County,Yangzhou;to obtain relevant data such as the prevalence rate and analyze the related risk factors of COPD.Meanwhile to study the diagnosis and treatment of COPD in this area.In order to provide theoretical basis for drafting more scientific and rational health management strategies and carrying out prevention and treatment of COPD in this area.Methods:This study is a cross-sectional study of the elderly population aged 60 years and over living in several villages in Baoying District of Yangzhou City.In this area,the permanent elderly population is relatively stable,the medical institutions and facilities in villages and towns are perfect,the villagers cooperate with the investigation and the relevant departments are understanding and supportive;meeting the basic requirements of epidemiological investigation.600 residents aged 60 and over in four villages in Baoying District of Yangzhou City were selected as the research object by stratified overall random sampling method.And the face-to-face survey was conducted with the epidemiological questionnaires designed and verified by experts,and the lung function was tested with a unified type of instrument.(1)The contents of the questionnaire mainly include:basic information such as sex and age,smoking and passive smoking,smoking degree,weight level,education level,cooking history and fuel type,personal respiratory disease history,family history of respiratory diseases,COPD awareness rate,etc.(2)The diagnostic criteria of COPD in this study refer to the Guidelines for the Diagnosis and Treatment of Chronic Obstructive Pulmonary Disease(Revised in 2013)[1].FEVi/FVC(forced expiratory volume in one second/forced vital capacity)less than 70%after inhalation of bronchodilator is used as a necessary condition to determine the existence of persistent airflow limitation,and a comprehensive analysis is made in combination with the history of disease,symptoms and signs.And COPD can only be diagnosed after other diseases are excluded.(3)The quality of life of patients with chronic obstructive pulmonary disease(COPD)was assessed with CAT questionnaire.(4)Collecting all kinds of data,choosing SPSS19.0 software to process and analyze the data,and using logistic regression model to analyze the related risk factors of COPD,with ?=0.05 as the test level.Results:1.The total number of participants in this survey was 600.And 353 people were selected which final information was complete and the lung function test met the quality control requirements,including 256 males and 97 females,with an average age of 72.2+5.1 years.Finally,62 people were diagnosed with COPD,and the overall prevalence of COPD was 17.56%.2.Result statistics showed that the prevalence of COPD was significantly higher in males than in females(52 males,20.31%,10 females,10.31%).There was a significant difference between the two groups(?2=4.862,P=0.027<0.05).The prevalence of COPD in different age groups was also different,and the difference was statistically significant(?2=9.738,P=0.021<0.05).The prevalence of COPD in smokers was 21.86%and that in non-smokers was 10.87%.The prevalence of COPD in smokers was significantly higher than that in non-smokers.The difference was statistically significant(?2=7.013,P=0.008<0.05).3.Univariate analysis showed that the possible factors related to the incidence of COPD in this area included sex,age,smoking status and smoking degree,weight level,education level,cooking history and fuel type,occupational dust exposure history,personal history of respiratory diseases,family history of respiratory diseases,etc.4.Multivariate logistic regression analysis of the statistically significant related factors showed that gender was male(OR=8.595,95%CI 3.028-24.393),smoking history(OR=4.385,95%CI 1.670-11.513),cooking history(OR=12.530,95%CI 4.954-31.689),and family history of respiratory diseases(OR=3.487,95%CI 1.347-9.024)were significantly correlated with the incidence of COPD in the elderly in this region.5.All 62 patients with chronic obstructive pulmonary disease were assessed by CAT,and the results showed that 17 patients(27.42%)were slightly affected,30 patients(48.39%)were moderately affected,13 patients(20.97%)were seriously affected,and 2 patients(3.23%)were seriously affected.Investigation of disease awareness rate and diagnosis rate showed that the awareness rate and diagnosis rate of COPD were 11.61%and 8.06%respectively.Conclusion:The prevalence of chronic obstructive pulmonary disease(COPD)among people aged 60 and over in some rural areas of Baoying County,Yangzhou City is 17.56%,which is lower than the national level(27.4%).The prevalence of COPD is higher in males than in females,and significantly higher in smokers than in non-smokers.The main risk factors of chronic obstructive pulmonary disease in the elderly in this area are male,smoking history,cooking history and family history of respiratory diseases.What's more,the prevention and treatment of COPD in this area is not optimistic and needs to be further improved.