“…Several risk factors emerged, many in keeping with what has been found in other reviews. [3,4] Those with the strongest evidence were inadequate PPE [23,27,37,42], fear of infection [22,25,27] and heavy workload. [25,33,35] Consistent with prior outbreak data [3,47], there was also good evidence that close contact with COVID-19 cases was a predictor of higher levels of anxiety, depression and insomnia [29,30,32,38], although two studies appeared to show con icting results.…”