The Impact of Meteorological Factors on the Number of Outpatient Visits for Acne in Zhangye Region
Objective This study investigates the impact of meteorological factors on outpatient visits for acne in the Zhangye region of Gansu province,aiming to provide a theoretical foundation for acne prevention and con-trol.Methods We collected a total of 6 305 acne outpatient daily data from a tertiary hospital in Zhangye region du-ring 2015 to 2019 along with concurrent meteorological data.A distributed lag non-linear model was employed to analyze the relationship between meteorological factors and outpatient visits for acne,considering stratification by gender and age.Results The effect of meteorological factors on outpatient visits for acne in Zhangye region was non-linear and lagging.Low temperature(-10.7℃)had an early onset of harm,while high temperature(24.9℃)had a pro-longed effect.The maximum relative risk(RR)of single-day lag effect for low temperature and high temperature were 1.031(95％CI:1.001-1.061)and 1.076(95％CI:1.037-1.120),respectively.Both low temperature and high temperature had the highest effects at a cumulative lag of 21 days,with RR values of 1.806(95％CI:1.576-2.071)and 1.755(95％CI:1.493-2.062),respectively.Low temperature and high temperature had a greater impact on males and the age group of 19-＜35 years.Low humidity(22％)demonstrated a protective effect(RR＜1)with the strongest effect observed at a cumulative lag of 21 days,with an RR of 0.564(95％CI:0.449-0.709).Low humidity had the most significant protective effect on females and the age group of 19-＜35 years.Conclusion Both low temperature and high temperature increase the risk of outpatient visits for acne in Zhangye region,with males and the age group of 19-＜35 years being more susceptible.Low humidity primarily protects females and the age group of 19-＜35 years.
Meteorological factorsTemperatureRelative humidityAcneDistributed lag non-linear model
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