• Department of Respiratory and Critical Care Medicine, West China Hospital of Sichuan University, Chengdu, Sichuan 610041, P. R. China;
LIU Chuntao, Email: taosen666@tom.com
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Objective In order to improve the prevention and treatment of bronchial asthma, the prevalence and risk factors of asthma in Chengdu among residents over 14 years old were investigated.Methods A cross-sectional survey was conducted in Chengdu. The inhabitants (age > 14 years) recruited in this household questionnaire survey were through multi-stage cluster random sampling. Univariate and multivariate logistic regression were used to analyze the risk factors of asthma.Results A total of 3 477 subjects were finally recruited in this study. Of them, 131 were asthmatic patients; and the prevalence rate was 3.8%. There were significant differences observed in the prevalence of asthma among people of different ages, residences, occupations and educational levels (χ2=191.084, P<0.05; χ2=9.114, P<0.05; χ2=114.268, P<0.05; χ2=62.123, P<0.05). Univariate regression analysis showed that the risk factors of asthma included five factors (measles, chickenpox, pneumonia, tracheobronchitis and intestinal parasitic diseases) related to childhood illness, and two factors (asthma and chronic bronchitis) related to the first-degree relatives (P<0.05). In addition, active smoking history was a risk factor for asthma in men (P<0.05). Multivariate logistic regression indicated that measles, pneumonia, tracheobronchitis, intestinal parasitic diseases in childhood and first-degree relatives suffering from asthma were independent risk factors for asthma.Conclusions This study describes the epidemiological characteristics of asthma in Chengdu among adolescents (age>14 years) and adults. The history of measles, pneumonia, tracheobronchitis, and intestinal parasitic diseases in childhood, and first-degree relatives suffering from asthma are the independent risk factors for asthma. In addition, active smoking history is a risk factor for asthma in men.

Citation: HU Qian, WU Songze, LIU Chuntao. Prevalence and risk factors of asthma in Chengdu among adolescents aged over 14 years and adults. Chinese Journal of Respiratory and Critical Care Medicine, 2020, 19(2): 183-189. doi: 10.7507/1671-6205.201911107 Copy

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