BMC Public Health, Journal Year: 2025, Volume and Issue: 25(1)

Published: April 7, 2025

Climate change has significantly impacted the diurnal temperature range (DTR), particularly in tropical regions of China, where DTR fluctuations are more frequent. While previous studies have primarily focused on link between short-term exposure and childhood asthma, there is limited information long-term effects from large-scale studies. In 2022, a cross-sectional survey involving 9,130 children aged 2-10 years was conducted using stratified cluster random sampling Sanya, Hainan Province, China. Data demographics, asthma symptoms were collected validated International Study Asthma Allergies Childhood (ISAAC) questionnaire. Temperature, precipitation Normalized Difference Vegetation Index (NDVI) obtained remote sensing satellite. A generalized linear model (GLM) employed to analyze association analyses based environmental lifestyle factors. The prevalence 7.57%, with annual average ranging 5.15℃ 7.26℃. After adjusting for potential confounders, each 1℃ increase associated 65.9% higher risk (95% CI: 1.058, 2.602). Stratified indicated that impact stronger among living areas temperatures, precipitation, lower vegetation coverage (measured by NDVI), as well those who not breastfed, exposed passive smoking, or whose mothers had pets during pregnancy. increased odds this effect influenced Therefore, public health strategies could mitigate through urban greening, advocating breastfeeding, reducing secondhand smoke, avoiding pet ownership

Language: Английский