HU Xiaoguang,ZHANG Hailin,LI Changchong, et al. An epidemiological survey of pediatric asthma in urban area of Wenzhou city[J]. JOURNAL OF WEZHOU MEDICAL UNIVERSITY, 2014, 44(11): 804-809.
Abstract：Objective: To investigate the prevalence, risk factors, attack triggers and management status of pediatric asthma in Wenzhou city, and to provide useful evidence for management of pediatric asthma. Methods: This survey was a randomized cluster sampling survey which was conducted according to a unified protocol, procedure and questionnaire. The eligible candidates were children aged 0 to 14. Results: The accumulative prevalence of asthma in children Wenzhou city was 3.3%, and male to female ratio was 1.3:1. The prevalence rate was 2.7%. The first attack age of asthma was 27 months (13~43), and the first diagnose age was 30 months (18~40). Children aged 3 to 6 years had the highest prevalence (5.5%). Asthma exacerbation most likely occurred in autumn and winter (28%), and early morning (48%). The most common trigger of asthma exacerbation was upper airway infection (87.5%), and the common precursors were running nose (64.8%), sneezing (59.6%) and nasal obstruction (43.3%). Common symptoms were cough (95.6%) and wheezing (69.2%). As for asthma management, the ratio of antibiotics utilization was 49.8%, inhaled steroid 53.6% and leukotriene receptor antagnist 45.1%. The independent risk factors of asthma were the first and second degree relatives’ history of asthma, patient’s history of allergic rhinitis and eczema. Conclusion: The prevalence of pediatric asthma in Wenzhou city is significantly higher than ever. Upper airway infection is the most common trigger of asthma exacerbation. Allergic rhinitis, eczema and family history of asthma are the main risk factors of asthma.
