Table A1.

Using database-appropriate syntax, with parentheses, Boolean operators, and field codes.

pubmed	((insomnia* OR “Primary Insomnia” OR “Transient Insomnia” OR “Secondary Insomnia” OR “Sleep Initiation Dysfunction*” OR Sleeplessness OR “Insomnia Disorder*” OR “Chronic Insomnia” OR “Psychophysiological Insomnia” OR “Mental health Disorder*” OR “Psychiatric Disorder*”) AND (“2019 novel coronavirus disease” OR COVID19 OR “COVID-19 pandemic” OR “SARS-CoV-2 infection” OR “COVID-19 virus disease” OR “2019 novel coronavirus infection” OR “2019-nCoV infection” OR “Coronavirus disease 2019” OR “2019-nCoV disease” OR “COVID-19 virus infection”) AND (“Health Personnel” OR “Health Care Provider*” OR “Health worker*” OR “Healthcare Provider*” OR “Healthcare Worker*” OR “Health care professional*” OR “medical staff” OR “Medical worker*”) AND (“Systematic review”) AND (“meta-analysis”[tiab] OR “meta-analytic”))	12
Scopus	((ALL(insomnia*) OR ALL(“Primary Insomnia”) OR ALL(“Transient Insomnia”) OR ALL(“Secondary Insomnia”) OR ALL(“Sleep Initiation Dysfunction*”) OR ALL(Sleeplessness) OR ALL(“Insomnia Disorder*”) OR ALL(“Chronic Insomnia”) OR ALL(“Psychophysiological Insomnia”) OR ALL(“Mental health Disorder*”) OR ALL(“Psychiatric Disorder*”)) AND (ALL(“2019 novel coronavirus disease”) OR ALL(COVID19) OR ALL(“COVID-19 pandemic”) OR ALL(“SARS-CoV-2 infection”) OR ALL(“COVID-19 virus disease”) OR ALL(“2019 novel coronavirus infection”) OR ALL(“2019-nCoV infection”) OR ALL(“Coronavirus disease 2019”) OR ALL(“2019-nCoV disease”) OR ALL(“COVID-19 virus infection”)) AND (ALL(“Health Personnel”) OR ALL(“Health Care Provider*”) OR ALL(“Health worker*”) OR ALL(“Healthcare Provider*”) OR ALL(“Healthcare Worker*”) OR ALL(“Health care professional*”) OR ALL(“medical staff”) OR ALL(“Medical worker*”)) AND (ALL(“Systematic review”)) AND (TITLE-ABS(“meta-analysis”) OR ALL(“meta-analytic”)))	77
Web of science	((TS = (insomnia*) OR TS = (“Primary Insomnia”) OR TS = (“Transient Insomnia”) OR TS = (“Secondary Insomnia”) OR TS = (“Sleep Initiation Dysfunction*”) OR TS = (Sleeplessness) OR TS = (“Insomnia Disorder*”) OR TS = (“Chronic Insomnia”) OR TS = (“Psychophysiological Insomnia”) OR TS = (“Mental health Disorder*”) OR TS = (“Psychiatric Disorder*”)) AND (TS = (“2019 novel coronavirus disease”) OR TS = (COVID19) OR TS = (“COVID-19 pandemic”) OR TS = (“SARS-CoV-2 infection”) OR TS = (“COVID-19 virus disease”) OR TS = (“2019 novel coronavirus infection”) OR TS = (“2019-nCoV infection”) OR TS = (“Coronavirus disease 2019”) OR TS = (“2019-nCoV disease”) OR TS = (“COVID-19 virus infection”)) AND (TS = (“Health Personnel”) OR TS = (“Health Care Provider*”) OR TS = (“Health worker*”) OR TS = (“Healthcare Provider*”) OR TS = (“Healthcare Worker*”) OR TS = (“Health care professional*”) OR TS = (“medical staff”) OR TS = (“Medical worker*”)) AND (TS = (“Systematic review”)) AND (Ti = (“meta-analysis”) OR TS = (“meta-analytic”)))	3