Table 1.

Prevalence of sleep disturbances during COVID-19 pandemic across meta-analyses

S.N.	Authors	Population and Time of Study	Assessment Measures	Pooled Prevalence	Limitations
1.	Jahrami et al,11 2021	•Adults from the general population •Patients having SARS-CoV-2 infection •Health care workers	•Researcher developed •Athens Insomnia Scale •PSQI •Insomnia Severity Index	35.7%	•Different measures used to assess sleep quality and quantity •Assessment of sleep disturbance not the primary focus in 20% of the studies
2.	Deng et al,12 2021	COVID-19 patients	•Researcher developed •PSQI •Insomnia Severity Index •Clinical interview	34%	•Most studies were from China •Significant heterogeneity among studies •Cut-off for PSQI was 16–21
3.	Panda et al,13 2021	Children with and without psychiatric disorders	Not mentioned for sleep disorders	21.3%	•Questionnaire-based assessment •Timing of data gathering in relation to pandemic not clear
4.	Pappa et al,14 2020	Health care workers	•Insomnia Severity Index •Athens Insomnia Scale •PSQI	34%	Most studies were from China
5.	Salari et al,15 2020	Nurses and physicians	•Insomnia Severity Index •Athens Insomnia Scale •PSQI	Nurses: 35% Physicians: 42%	Most studies were from China
6.	Marvaldi et al,16 2021	Health care workers	•Insomnia Severity Index •PSQI	44%	Most studies were from China