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. 2020 Aug 23;277:347–357. doi: 10.1016/j.jad.2020.08.034

Table 1.

Features of the studies selected (N=117)

N %
Year of the study publication
 2001-2005 22 19
 2006-2010 19 16
 2011-2015 5 4
 2016-2020 71 61
Epidemiologic design
 Cross-sectional 106 91
 Cohort study 8 6
 Quasi-experimental 2 2
 Case-control 1 1
Use of validated measures of mental health
 Yes 98 84
 No 19 16
Number of participantsa 1,036 (26 - 21,199)
Mental health problemsb
 Anxiety 62 53
 Depression 54 46
 Acute stress disorder 33 28
 Post-traumatic stress disorder 31 26
 Mental health status (overall assessment) 28 24
 Insomnia 19 16
 Burnout 12 10
 Others 33 28
Areab
 Asia (excluding Middle East countries) 78 65
 Northern America 15 13
 Middle East 14 12
 Europe 10 9
 West Africa 2 2
 Worlwide 1 1
Study timing
 During outbreak 86 74
 After outbreak 27 23
 Both during and after outbreak 2 2
 Prior, during and after outbreak 1 1
 Prior outbreak onset 1 1
Type of health emergency
 COVID-19 61 52
 SARS 41 35
 MERS-COV 7 6
 H1N1 influenza virus 4 3
 Ebola 3 3
 H7N9 influenza virus 1 1
Population
 Health care workers in general 85 73
 Nurses 18 15
 Doctors 14 12
Setting
 Hospital 80 68
 Healthcare facilities in general 16 14
 Primary Care centre 3 5
 Non specified 18 15
a

Mean and range.

b

Percentages exceeding 100% as categories are not mutually exclusive.