Effect of the historic Spanish heatwave over glycemic control in adult patients with type 1 diabetes.

Aim: To evaluate the effect of the historic Spanish heatwave (9th-26th July 2022) over glycemic control in adults with type 1 diabetes (T1D).

Methods: Cross-sectional retrospective analysis of adult patients with T1D in Castilla-La Mancha (south-central Spanish region) using intermittently scanned continuous glucose monitoring (isCGM) during and after the heatwave. Primary outcome was change in time in range (TIR) 3.