Ambient Temperature and Injury-Related Emergency Department Visits in China and Its Provinces: A Large National Case-Crossover Study.
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| Title: | Ambient Temperature and Injury-Related Emergency Department Visits in China and Its Provinces: A Large National Case-Crossover Study. |
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| Authors: | Guanhao He1, Yuan Wang2, Tao Liu1, Xiao Deng2, Jianxiong Hu1, Yuliang Er2, Pengpeng Ye2, Qijiong Zhu1, Ye Jin2, Cuirong Ji2, Ziqiang Lin1, Fengrui Jing1, Leilei Duan2 duanleilei@ncncd.chinacdc.cn, Wenjun Ma1 mawj@gdiph.org.cn |
| Source: | Environmental Health Perspectives. Jun2026, Vol. 134 Issue 2, p148-159. 12p. |
| Subject Terms: | *Air pollution, *Climate change, *Diseases, *Temperature, Injury risk factors, Wounds & injuries, Risk assessment, Public health surveillance, Statistical models, Research funding, Statistical sampling, Logistic regression analysis, Hospital emergency services, Symptoms, Hospitals, Descriptive statistics, Crossover trials, Odds ratio, Medical appointments, Cluster sampling, Comparative studies, Data analysis software, Confidence intervals, Forecasting, Sensitivity & specificity (Statistics) |
| Geographic Terms: | China |
| Abstract: | BACKGROUND: Temperature-related risks on nonaccidental morbidity or mortality have been well documented. However, limited studies have investigated the injury morbidity risk and burden attributed to ambient temperature. OBJECTIVE: The current study aimed to assess the injury morbidity risk and burden attributed to the ambient temperature in China. METHODS: A time-stratified case-crossover study was conducted in 31 provincial-level administrations across mainland China, and 11.5 million injury-related emergency department visits recorded in the National Injury Surveillance System (NISS) during 2006- 2021 were included in the study. An injury case refers to a patient who takes the first visit to the outpatient or emergency department in the NISS due to an injury. Daily meteorological data were collected from the fifth generation of European ReAnalysis-Land. A two-stage approach, including a conditional logistic regression and a multilevel meta-analysis, was applied to estimate the temperature-injury association, which was then applied to assess the morbidity burden attributable to temperature. RESULTS: We observed that injury risk increased 1.2% (95%CI: 1.0%-1.4%) for a 1 °C increase in daily mean temperature, with higher risk for males, children aged 0-4, and residents in the tropical and subtropical zone. We also found that animal injury, violence and attack, and injury in agricultural areas were more susceptible to temperature. Compared to the 2020s, we projected a 5.7 times increase of injury cases and a 10.4 times of attributable fraction due to temperature change driven by global warming in the 2090s under the SSP5-8.5 scenario in China. Our findings might be informative for injury prevention in the context of climate change in China. CONCLUSION: Our findings identify susceptible populations, regions, and mechanism-specific injuries when exposed to ambient temperature, which could be informative for injury prevention in the context of climate change in China. [ABSTRACT FROM AUTHOR] |
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| Database: | GreenFILE |
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| Abstract: | BACKGROUND: Temperature-related risks on nonaccidental morbidity or mortality have been well documented. However, limited studies have investigated the injury morbidity risk and burden attributed to ambient temperature. OBJECTIVE: The current study aimed to assess the injury morbidity risk and burden attributed to the ambient temperature in China. METHODS: A time-stratified case-crossover study was conducted in 31 provincial-level administrations across mainland China, and 11.5 million injury-related emergency department visits recorded in the National Injury Surveillance System (NISS) during 2006- 2021 were included in the study. An injury case refers to a patient who takes the first visit to the outpatient or emergency department in the NISS due to an injury. Daily meteorological data were collected from the fifth generation of European ReAnalysis-Land. A two-stage approach, including a conditional logistic regression and a multilevel meta-analysis, was applied to estimate the temperature-injury association, which was then applied to assess the morbidity burden attributable to temperature. RESULTS: We observed that injury risk increased 1.2% (95%CI: 1.0%-1.4%) for a 1 °C increase in daily mean temperature, with higher risk for males, children aged 0-4, and residents in the tropical and subtropical zone. We also found that animal injury, violence and attack, and injury in agricultural areas were more susceptible to temperature. Compared to the 2020s, we projected a 5.7 times increase of injury cases and a 10.4 times of attributable fraction due to temperature change driven by global warming in the 2090s under the SSP5-8.5 scenario in China. Our findings might be informative for injury prevention in the context of climate change in China. CONCLUSION: Our findings identify susceptible populations, regions, and mechanism-specific injuries when exposed to ambient temperature, which could be informative for injury prevention in the context of climate change in China. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 00916765 |
| DOI: | 10.1021/EHP.6c00148 |
