Abstract
Urolithiasis was a global disease and it was more common in southern China. This study looked into the association between daily temperature and urolithiasis hospital admissions in Ganzhou, a large prefecture-level city in southern China. In Ganzhou City from 2016 to 2019, a total of 60,881 hospitalized cases for urolithiasis from 69 hospitals and meteorological data were gathered. The effect of high ambient temperature on urolithiasis hospital admissions was estimated using a distributed lag nonlinear model. Stratified analysis was done to examine sex differences. The study found that in Ganzhou of China, the exposure–response curves approximated a “J” shape which across genders were basically similar. The maximum lag effect occurred on the second day after high temperatures for males but on the third day for females. Compared to the 10 °C reference temperature and considering the cumulative lag effect of 10 days, the relative risks of the daily mean temperature at the 95th percentile on the total, male, and female hospital admissions for urolithiasis were 2.026 (95% CI: 1.628, 2.521), 2.041 (95% CI: 1.603, 2.598), and 2.030 (95% CI: 1.552, 2.655), respectively, but the relative risks between sex were not statistically significant (p = 0.977). Urolithiasis morbidity risk in China could be exacerbated by high temperatures. The effect of high temperature on urolithiasis was similar across genders.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Funding
The study was supported by the National Natural Science Foundation of China (42165012) and Ph.D. Start-up Fund of Gannan Medical University (QD202013). The first author was funded by the University’s Postgraduate scholarship of Gannan Medical University.
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Zhijin Li performed software code, performed formal analysis, and wrote the original draft of the manuscript. Chenyang Shi performed data cleaning and materials gathering. Runxiu Wang and Xiaoning Wang assisted in data collection, gave guidance and constructive suggestions. Yanbin Hao contributed to conceptualization, wrote, reviewed, edited the manuscript, and was responsible for fund acquisition.
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This article did not contain any studies with human participants performed by any of the authors. This study passed the ethical review of the Biomedical Research Ethics Committee of Gannan Medical University (No. 2021107).
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Li, Z., Shi, C., Wang, X. et al. Association between daily temperature and hospital admissions for urolithiasis in Ganzhou, China: a time-series analysis. Int J Biometeorol 67, 47–54 (2023). https://doi.org/10.1007/s00484-022-02383-2
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DOI: https://doi.org/10.1007/s00484-022-02383-2