(HealthDay News) — Ambient temperature is associated with hospitalization for renal diseases, with more prominent risk seen for women, children aged 0 to 4 years, and the elderly aged 80 years or older, according to a study published online in The Lancet Regional Health: Americas.

Bo Wen, from Monash University in Melbourne, Australia, and colleagues collected daily hospital admission data from 1816 cities in Brazil from 2000 to 2015. The association between temperature and renal disease was examined by applying a time-stratified case-crossover design.

The researchers found that during the study period, 2,726,886 hospitalizations for renal disease were recorded. At the national level, for each 1-degree Celsius increase in daily mean temperature, there was a 0.9% increase in the estimated risk for hospitalization for renal diseases over lag 0 to 7 days. The largest associations between temperature and renal diseases were seen at lag 0 days but persisted for lag 1 to 2 days. In women, children aged 0 to 4 years, and the elderly aged 80 years or older, the risk was more prominent. The increase of temperature accounted for 7.4% of hospitalizations for renal disease, equating to 202,093 cases.

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“In the context of global warming, more strategies and policies should be developed to prevent heat-related hospitalizations and address climate change as soon as possible,” the authors write.

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