Le Vu Thuy Huong, Berman Jesse D, Wattenberg Elizabeth V, Ngo Toan Van, Tran Quynh Anh, Alexander Bruce H
Division of Environmental Health Sciences, University of Minnesota Twin Cities, Minneapolis, Minnesota, USA.
Environmental Health Department, School of Preventive Medicine and Public Health, Hanoi Medical University, Hanoi, Viet Nam.
Inj Prev. 2024 Jan 25;30(1):33-38. doi: 10.1136/ip-2023-044946.
The short-term association between increasing temperatures and injury has been described in high-income countries, but less is known for low-income and-middle-income countries, including Vietnam.
We used emergency injury visits (EIV) data for 2017-2019 from 733 hospitals and clinics in Hanoi, Vietnam to examine the effects of daily temperature on EIV. Time-series analysis with quasi-Poisson models was used to estimate a linear relative risk increase (RRI) for overall populations and ones stratified by age and sex. Exposure-response curves estimated non-linear associations as an RR between daily temperature and injury. Models were adjusted for the day of week, holidays, daily relative humidity, daily particulate matter, and long-term and seasonal trends.
A total of 39 313 EIV were recorded averaging 36 injuries daily. Injuries more likely occurred in males and those aged 15-44, and aged 44-60. For linear effects, a 5°C increase in same day mean temperature was associated with an overall increased EIV (RRI 4.8; 95% CI 2.3 to 7.3) with males (RRI 5.9; 95% CI 3.0 to 8.9) experiencing a greater effect than females (RRI 3.0; 95% CI -0.5 to 6.5). Non-linear effects showed an increase in EIV at higher temperatures compared with the threshold temperature of 15°C, with the greatest effect at 33°C (RR 1.3; 95% CI 1.2 to 1.6). Further research to investigate temperature-injury among different populations and by the cause of injury is warranted.
在高收入国家，气温升高与伤害之间的短期关联已有描述，但在包括越南在内的低收入和中等收入国家，这方面的了解较少。
我们使用了越南河内733家医院和诊所2017 - 2019年的急诊伤害就诊（EIV）数据，以研究每日气温对急诊伤害就诊的影响。采用拟泊松模型的时间序列分析来估计总体人群以及按年龄和性别分层人群的线性相对风险增加（RRI）。暴露 - 反应曲线估计了每日气温与伤害之间的非线性关联，以相对风险（RR）表示。模型对星期几、节假日、每日相对湿度、每日颗粒物以及长期和季节性趋势进行了调整。
共记录了39313次急诊伤害就诊，平均每日36例伤害。伤害更易发生在男性以及年龄在15 - 44岁和44 - 60岁的人群中。对于线性效应，当日平均气温升高5°C与急诊伤害就诊总体增加相关（相对风险增加4.8；95%置信区间2.3至7.3），男性（相对风险增加5.9；95%置信区间3.0至8.9）比女性（相对风险增加3.0；95%置信区间 - 0.5至6.5）受影响更大。非线性效应表明，与15°C的阈值温度相比，在较高温度下急诊伤害就诊增加，在33°C时影响最大（相对风险1.3；95%置信区间1.2至1.6）。有必要进一步研究不同人群中以及按伤害原因划分的温度与伤害之间的关系。
