Impact of temperature variability on risk of hospital admissions for circulatory system diseases in Tangshan City
- VernacularTitle:气温变异对唐山市循环系统疾病住院风险的影响
- Author:
Wandi ZHOU
1
;
Zhikun ZHANG
1
;
Yinuo ZHENG
1
;
Jun ZHOU
1
Author Information
- Publication Type:Investigation
- Keywords: temperature variability; circulatory system disease; hospital admission; case-crossover study; climate change
- From: Journal of Environmental and Occupational Medicine 2025;42(11):1315-1321
- CountryChina
- Language:Chinese
-
Abstract:
Background In the context of global climate change, investigating the impact of temperature variability (TV) on the circulatory system is of significant importance for public health promotion. Objective To evaluate the effect of TV on the risk of hospital admissions for circulatory system diseases in Tangshan City. Methods Data on hospital admissions for circulatory diseases from four general hospitals in Tangshan between 2021 and 2023 were collected, while concurrent meteorological data were also obtained. A time-stratified case-crossover design was employed to analyze the association between TV and the risk of hospital admissions for circulatory system diseases. Subgroup analyses were further conducted by gender, age, and cold/heat wave days. Results A total of
11974 hospital admissions for circulatory system diseases were recorded from 2021 to 2023, with a median daily temperature of 13.90 ℃. The effects of TV01 through TV07 on hospitalization risks for overall circulatory system diseases and coronary heart disease were all statistically significant (P<0.05). Additionally, the effects of TV01 and TV04 through TV07 on hospitalization risk for stroke were also statistically significant (P<0.05). A 1°C increase in TV07 was associated with odds ratios (ORs) of 1.041 (95%CI: 1.032, 1.050) for overall circulatory system diseases, 1.050 (95%CI: 1.037, 1.064) for coronary heart disease, and 1.029 (95%CI: 1.014, 1.045) for stroke. Furthermore, the effect of TV on the risk of hospital admissions were stronger during cold wave days compared with non-cold/hot wave days. Conclusion TV may contribute to increased risk of hospital admissions for circulatory system diseases in Tangshan, and the impact of TV exhibits a certain lag effect. It is suggested to explore and develop targeted intervention measures.
