WCN26-176 ASSOCIATION BETWEEN AMBIENT TEMPERATURE EXTREMES AND ACUTE KIDNEY INJURY HOSPITALIZATIONS IN JAPAN: A NATIONWIDE TIME-STRATIFIED CASE-CROSSOVER STUDY, 2011–2019

Acute kidney injury (AKI) is a severe condition characterized by a sudden decline in kidney function, with high mortality and healthcare costs. Although extreme ambient temperatures, particularly heatwaves, have been linked to increased AKI risk, the effects of both heat and cold exposure across different demographic groups remain unclear. This study examines the association between ambient temperatures and AKI emergency hospitalizations, with a focus on age and sex differences.