Key Points

• Total healthcare utilization: increase between August 2, 2022, and August 4, 2022, in hospitalizations following emergency room visits for all causes (age 75 and older).

• Healthcare utilization for the iCanicule1 composite indicator: increase between August 2, 2022, and August 4, 2022, in the proportion of emergency department visits related to iCanicule among all coded visits (all ages).