Impact of COVID-19 outbreak on ICU nurses' mental health. An Italian multicenter study.

Aim: AIM: The aim of this study was to evaluate variations in ICU nurses ' mental health status over the COVID-19 outbreak by quantifying the extent of symptoms of depression, anxiety and PTSD over time.

Methods: METHODS: This study was an Italian multicenter prospective cohort study assessing caseness of anxiety, depression and PTSD at 6 and 12 months from the beginning of the COVID-19 outbreak in Italy.

Results: RESULTS: A total of 359 nurses, 233 (64.