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Table 1 Summary of studies, sample characteristics, assessment tools, prevalence rates, and associated risk factors

From: Risk factors for mental health in general population during SARS-COV2 pandemic: a systematic review

Lead author/year

Country

Sample size (n)

Sample characteristics

Assessment tool

Prevalence of the disorder (% or MeanScore)

Risk factors

Zhou et al. 2020a [20]

China

8079

(range 12–18)

M = 16 (years)

Sex (f/m): 4326/3753

GAD-7

PHQ-9

Anxiety: 43.7%

Depression: 37.4%

Gender, living area, education level

Chen et al. 2020 [21]

China

1036

Sex (f/m): 505/531

SCARED

DSRS-C

Anxiety: 18.92%

Depression: 11.78%

Gender, age group, education level

Islam et al. 2020 [22]

Bangladesh

476

Sex (f/m): 156/320

GAD-7

PHQ-9

Anxiety: 87.7%

Depression: 82.4%

Gender, age, lagging academically, living area, housing status

Rudenstine et al. 2021 [23]

USA

1821

(range 18–77)

M = 26.17 (years)

Sex (f/m): 1301/ 493

GAD-7

PHQ-9

Anxiety: 41.3%

Depression: 50.3%

Gender, age, education level, ethnicity, marital status, household income, COVID-19 stressors

Fawaz et al. 2021 [24]

Lebanon

520

(range 18–36)

M = 21.03 ± 2.66) (years ± SD)

Sex (f/m): 319/201

DASS‐21

Anxiety: 7.25(± 4.74)

Depression: 7.67 (± 5.58)

Gender

Zhang et al. 2020c [25]

China

1018

M = 16.61 ± 1.06 (years ± SD)

GAD-7

PHQ-9

Anxiety: 31.4%

Depression: 52.4%

Gender, education level

Hammarberg et al. 2020 [26]

Australia

13,762

Sex(f/m): 10,434/3328

GAD-7

PHQ-9

Anxiety: 20.0%

Depression: 24.8%

Gender

Debowska et al. 2020 [27]

Poland

7228

M = 22.78 ± 4.40 (years ± SD)

Sex (f/m): 5855/1373

DASS‐21

/

Gender

Fitzpatrick et al. 2020 [28]

USA

10,368

Age:18 and over

Sex (f/m): 5290/5.078

CES‐D

Depression: 16.94

Gender, race, Hispanic origin

Bartoszek et al. 2020 [29]

Poland

471

(range 18–74)

M = 25.5 ± 2.1 (years ± SD)

Sex (f/m): 403/68

BDI

ISI

R-UCLA

Depression: 14.16

Insomnia: 15.58

Gender

Bigalke et al. 2020 [30]

USA

103

(range 18–68)

M = 38 ± 1(years ± SD)

Sex (f/m): 61/ 42

STAI

PSQI

ESS

ISI

CEDS

Anxiety 41 ± 1

Sleep disorders 7 ± 0 (psqi)/5 ± 0 (ess)

Insomnia 7 ± 0

Depression 11 ± 1

Gender

Voitsidis et al. 2020 [31]

Greece

2427

(range 18–30)

Sex (f/m): 1800/563

AIS

Insomnia: 37.6%

Gender, living area

Zhou et al. 2020b [32]

China

11,835

(range 12–29)

Sex (f/m): 6826/5009

PSQI

PHQ-9

GAD-7

Anxiety: 44.40%

Depression: 44.80%

Gender, age, education level, living area

Wang et al. 2020 [6, 33]

China

6437

M = 31.40 ± 13.49 (years ± SD)

Sex (f/m): 3613/2824

PSQI

Sleep disorders: 17.65%

Gender, age

Barrea et al. 2020 [34]

Italy

121

M = 44.9 ± 13.3 (years ± SD)

Sex (f/m): 78/43

PSQI

Sleep disorders:

pre 6.37 ± 3.96

post 8.64 ± 3.73

Gender

Qiu et al. 2020 [35]

China

52,730

(range18–60)

Sex (f/m): 34,131/18599

COVID-19 PDI

Peritraumatic distress: 23.65 ± 15.45

Psychological distress: 35%

Gender, age, education level

Liang et al. 2020 [36]

China

570

(range14–35)

Sex (f/m): 365/205

PCL-C

GHQ-12

SCSQ

PTSD: 12.8%

Coping style

Liu et al. 2020 [18, 37]

USA

898

(range 18–30)

Sex (f/m): 81.30%/14.1%

PCL-C

GAD-7

PHQ-8

Depression: 43.3%

Anxiety: 45.4%

PTSD: 31.8%

Gender, age, loneliness, distress tolerance

Di Crosta et al. 2020 [38]

Italy

1253

(range18–64)

Sex (f/m): 808/445

IES-R

PTSD: 35.59%

Gender, education level, COVID-19 stressors

Tang et al. 2020 [39]

China

2485

(range 16–27)

Sex (f/m): 1525/960

PCL-C

PHQ-9

PTSD: 2.7%

Depression: 9.0%

Age, education level, COVID-19 stressors

Zhang et al. 2020b [25]

China

263

M = 37.7 ± 14 (years ± SD)

Sex (f/m): 157/106

IES

Traumatic stress: 13.6 ± 7.7

No sociodemographic variable

Passavanti et al. 2021 [40]

Australia, China, Ecuador, Iran, Italy, Norway, USA

1612

M = 28 ± 9.36 (years ± SD)

Sex (f/m): 968/644

IES-R

PSS10

DASS-21

PHQ-9

PTSD: Iran M = 41.75, SE = 2.24;

Perceived stress: Italy M = 21.14, SE = 0.76

Depression: Italy M = 18.49, SE = 1.23; Anxiety: Ecuador M = 13.39, SE = 1.36; Stress: Italy M = 20.60, SE = 1.32

Depression: Italy M = 10.44, SE = 0.78

Gender, type of housing, coping style, COVID-19 stressors

Abba-Aji et al. 2020 [41]

Canada

6041

Mage: 42 years

Age range: 11–88 years

Sex(f/m):5185/740

BOCS

Obsessions: 60.3%

Compulsions: 53.8%

Gender, age, education level

Ji et al. 2020 [42]

China

Survay1: 13,478

Survay2: 8467

Survay3: 8816

Range: 17–50 years

-Survey 1-sex (f/m):8816/4662

-Survay2-sex (f/m):5476/2991

-survay3-sex (f/m):5703/3113

Y-BOCS

Ocd:

Survey1: 11.3%

Survey2: 3.6%

Survey3: 3.5%

Gender, age, COVID stressors

Darvishi et al. 2020 [43]

Iran

150

Range: 13–19 years

Sex (f/m): 97/53

MOCI

OCD: 67.3%

Gender

  1. Acronyms of questionnaires used: AIS = Athen Insomnia Scale [44], BDI = Beck’s Depression Inventory scale [45], BOCS = The Brief Obsessive–Compulsive Scale (Bejerotet al. 2014), CES-D = Center for Epidemiological Studies-Depression Scale [46], COVID-19 PDI = COVID-19 Peritraumatic Distress Index [35], DASS-21 = Depression, Anxiety, and Stress Scale-21 items [47], ESS = Epworth Sleepiness Scale (Johns MW, 1991), GAD-7 = Generalized Anxiety Disorder 7 scale [48], GHQ-12 = 12-Item General Health Questionnaire (Goldberg and Williams, 1988), IES = Impact of Event Scale [49], IES-R = Impact of Event Scale–Revised (Weiss and Marmar, 1997), ISI Insomnia Severity Index (Morin, Belleville, Bélanger and Ivers, 2011), MOCI = Maudsley Obsessive-Compulsive Inventory Questionnaire [50], PCL-C Post-traumatic stress disorder CheckList- Civilian Version ( Weathers, 1991); PH9-9 = Patient Health Questionnaire-9 [51], PHQ-8 = Patient Health Questionnaire-8 (Kroenke et al. 2009), PSQI = Pittsburgh Sleep Quality Index [52], PSS10 = Perceived Stress Scale 10 (Cohen, 1983), R-UCLA = Revised UCLA loneliness scale (Russell, D., Peplau, L.A., and Cutrona, C.E. 1980), SCARED = Screen for Child Anxiety-Related Disorders scale [53], SCSQ = Simplified Coping Style Questionnaire (Xie Y., 1998), STAI = State-Trait Anxiety Inventory scale (Spielberger, 1989), Y-BOCS = Yale-Brown Obsessive-Compulsive Scale (Goodman et al. 1989). Acronyms of mental disorders: PTSD = post-traumatic stress disorder