气温变化对资阳市消化系统疾病的影响OA

To investigate the effects of air temperature and its short term fluctuations(diurnal and inter daily)on the risk of digestive diseases risk under the subtropical climate in Ziyang,Sichuan,this study collected daily hospital admissions for digestive diseases and corresponding daily meteorological observations from 2016 to 2020.A distributed lag non-linear model was used to analyze the effects of daily minimum temperature(Tmin),daily maximum temperature(Tmax),Diurnal Temperature Range(DTR),and temperature change between neighboring days(TCN)on digestive disease risk.Differences between gender and age subgroups were examined,and synergistic effects among multiple factors were explored.The results show a significant association between higher temperatures and increased morbidity,with Tmin having stronger effects in the cold season than in the warm season.Specifically,when Tmin reaches 17℃(95th percentile)in the cold season and 27℃in the warm season,the highest relative risks are 1.08(95%CI:1.00,1.17)and 1.06(95%CI:1.01,1.11),respectively.For Tmax,the relative risks are 1.05(95%CI:1.01,1.10)at 23℃in the cold season and 1.01(95%CI:0.96,1.06)at 35℃in the warm months.Lower temperatures have no significant impact on morbidity.Large DTRs have a strong and delayed impact on digestive diseases,especially among the elderly and males.TCN shows an overall positive relationship with hospital admissions,indicating that positive temperature variations have a stronger effect than negative variations,particularly among males.The binary model indicates that high temperatures have a dominant influence on morbidity compared to temperature fluctuations.When warm weather coincides with larger DTRs or remarkable warming processes,hospital admissions increase significantly.