Influence of meteorological factors on children and adolescents with asthma
Objective To analyze the influence of meteorological factors on children and adolescents with asthma of different characteristics.Methods This study was a retrospective study.A total of 2 600 children and adolescents with asthma who used the electronic version of the China Children's Asthma Action Plan(CCAAP)from June 2021 to June 2022 were enrolled.This study collected the basic information,symptoms and environmental monitoring data of children and adolescents with asthma.The influence of air quality index(AQI),temperature and humidity on children and adolescents with asthma were analyzed.Results From June 2021 to June 2022,a total of 49 107 daily symptoms were recorded.Among them,the symptoms of"yellow zone"and"red zone"were 3 274 times.Multivariate Logistic regression analysis showed that compared with excellent AQI grade,the occurrence of asthma symptoms increased when the AQI grade was good(OR=1.270,95％CI:1.162-1.389,P＜0.05)and polluted(OR=1.640,95％CI:1.436-1.873,P＜0.05);compared with the daily temperature of 21-30 ℃,the occurrence of asthma symptoms increased when the daily temperature was 11-20 ℃(OR=1.545,95％CI:1.400-1.706,P＜0.05),1-10 ℃(OR=1.583,95％CI:1.415-1.770,P＜0.05)and more than30℃(OR=1.393,95％CI:1.122-1.730,P＜0.05);compared with the air humidity of 41％-60％,the occurrence of asthma symptoms increased when the air humidity was 0-20％(OR=1.767,95％CI:1.381-2.259,P＜0.05)and 21％-40％(OR=1.456,95％CI:1.273-1.665,P＜0.05).The occurrence of asthma symptoms decreased with increasing age(OR=0.916,95％CI:0.903-0.930,P＜0.05)and adherence of using the electronic version of CCAAP(OR=0.930,95％CI:0.927-0.933,P＜0.05).Among the single self-reported triggers in children and adolescents with asthma,the most common trigger was respiratory infection accounting for 56.03％,climate change accounted for 23.99％,and air pollution accounted for 5.08％.The comparison between groups showed that children and adolescents with asthma who were adolescent,living in North China,and obese were more susceptible to air pollution.Children and adolescents with asthma living in East China,Southern China and Central China were more susceptible to climate change.Conclusion Poor air quality,low temperature,high temperature,low air humidity,younger age and decreased compliance with electronic CCAAP were risk factors for the occurrence of asthma symptoms.
AsthmaMeteorological factorChildren and adolescents
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