Istat calculates the mental health index in the Italian regions. The mental health index is a measure of psychological distress obtained from the synthesis of the scores obtained by each individual aged 14 years and over on 5 questions extracted from the SF36-36 Item Short Form Survey questionnaire. The questions refer to the four main dimensions of mental health - anxiety, depression, loss of behavioural or emotional control and psychological well-being. The index varies between 0 and 100, with better psychological well-being conditions as the value of the index increases. Data is available for the period 2016-2022