Key Points

• In the Pays de la Loire region, nearly 600 emergency care visits related to heat waves were recorded over the summer, 400 of which resulted in hospitalization. Approximately 10% of these visits occurred during heat waves. People aged 75 and older were particularly affected.

• Heat-related mortality is estimated at nearly 340 deaths over the entire summer (representing just over 3% of all-cause mortality). Of these, 82 deaths occurred during heat waves (representing 11% of all-cause mortality during these episodes). Nearly three-quarters of these deaths involved people aged 75 and older, whether over the entire summer or during heatwave episodes.