Abstract
Cardiovascular disease (CVD) has become a severe public health and social issue in China. However, in northwest China, evidence on the association between ambient temperature and CVD hospitalisations in suburban farmers is somewhat limited. We collected CVD hospitalisations and meteorological data (2012–2015) in Zhangye suburbs and assessed the temperature-related risk and burden of admission by fitting a distributed lag nonlinear model to probe the relationship between ambient temperature and CVD hospitalisations among farmers in suburban northwest China. The results show that 23,921 cases of CVD admissions were recorded from 2012 to 2015. There was a “U-shaped” association between temperature and hospitalisations. Compared with the minimum admissions temperature (MAT) at 15.3 °C, the cumulative relative risk (RR) over lag 0–21 days was 1.369 (95% CI 0.980–1.911) for extreme cold temperature (1st percentile, –15 °C), 1.353 (95% CI 1.063–1.720) for moderate cold (5th percentile, –11 °C), 1.415 (95% CI 1.117–1.792) for extreme heat (99th percentile, 26 °C), and 1.241 (95% CI 1.053–1.464) for moderate heat (95th percentile, 24 °C). Female farmers were more susceptible to low and high temperatures than male farmers. Farmers aged ≥ 65 years old were more sensitive to low temperatures, while farmers aged < 65 years old were more sensitive to high temperatures. A total of 13.4% (3,208 cases) of the hospitalisation burden for CVD were attributed to temperature exposure, with the moderate range of temperatures accounting for the most significant proportion (12.2%). Ambient temperature, primarily moderate temperatures, might be an essential factor for cardiovascular-related hospitalisations among farmers in suburban northwest China.
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This work was supported by the National Natural Science Foundation of China (No. 71472079) and the Key Project of China Ministry of Education for Philosophy and Social Science (No. 16JZD023).
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Wang, B., Chai, G., Sha, Y. et al. Association between ambient temperature and cardiovascular disease hospitalisations among farmers in suburban northwest China. Int J Biometeorol 66, 1317–1327 (2022). https://doi.org/10.1007/s00484-022-02278-2
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DOI: https://doi.org/10.1007/s00484-022-02278-2