“…Out of thirty-six studies, two 4,5 were case reports, thirty were questionnaires or surveys, twenty-nine of which were conducted online, three were retrospective observational studies, [36][37][38] and one was a prospective cohort study. 39 Regarding the population studied, 15 studies 4,[6][7][8][15][16][17]21,25,[29][30][31]33,34,38 referred to healthcare workers, thirteen 5,[10][11][12][13][14]18,19,[22][23][24]32,35 referred to the general population, five 20,26,27,37,39 referred to COVID-19 patients, two 9,28 compared medical professionals to nonmedical professionals, one 20 studied COVID-19 patients some of which were also healthcare workers and one study 36 compared attenders with SSD in emergency departments before and during the pandemic. The overall population studied was 145,884 individuals (without the ability to exclude double reporting in surveys).…”