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. 2022 Nov 13;2(4):100082. doi: 10.1016/j.psycom.2022.100082

Table 1.

Characteristics of the included studies.

Early stage (January–May 2020)
First author and year of publication Survey time Region Sample size Sample characteristics Measurement tool (s) Prevalence (%) of mental health problems
Related risk factors Protective factors NOS quality
Anxiety Depression Stress PTSD Insomnia Other
Chi et al., 2020b Feb12 to Feb 17, 2020 China 2500 M ​± ​SD:
20.6 ​± ​1.90
Sex (f/m):
1283/755
Z-SAS, PHQ-9,
PCL, PTGI
15.5 23.3 30.8 PTG ​= ​66.9% Anxiety, Depression, and PTSD: older age, knowing people who had been isolated, more ACEs, higher level of anxious attachment and avoidant attachment, and lower level of resilience
PTG: higher subjective SES, knowing people who had been isolated, and the number of confirmed cases in participants' areas, fewer ACEs, lower level of avoidant attachment, and higher level of resilience
Satisfactory
Fu et al., 2020 May 10 to Jun 10, 2020. Haikou 89,588 Sex (f/m):
50,394/39,194
Age group:
18–30 years
GAD-7 41.1 Anxiety: female, age (26–30 years), being a sophomore, junior, and senior
student, higher
paternal education
level, low economic status, and low
social support.
Good
Guan et al., 2021 Feb4 to Feb
12,
2020
Henan 24,678 M ± SD:
20.51 ​± ​1.28
Sex(f/m): 11,048/13,630
GAD-7 7.3 Anxiety: Sex, place of residence, high worried and fear
level, low cognitive
level, and behavior
status.
Anxiety: positive preventing behaviors Satisfactory
Jia et al., 2021 Feb 2020 China 740 Sex (f/m):
458/282
SAS 18.78 Anxiety: female Anxiety: knowledge and attitude regarding COVID-19 Satisfactory
Jing et al., 2021 Feb20 to Feb
22, 2020
China 17,876 M ​± ​SD:
54.8 ​± ​9.0
Sex(f/m): 12,818/5058
SDS 65.2 Depression: female, moderate or high self-perceived risk of infection, moderately or highly impacted by the outbreak, and eager to go back to school Depression:personality type, educational level, moderate or high concern about the outbreak, moderate or high satisfaction with pandemic
prevention and control
measures, and health
literacy on communicable diseases
Satisfactory
Li (Xueguo) et al., 2020 Feb13 to Feb
22, 2020.
Guangdong 304,167 Age range:
18–26 years
Sex(f/m):
182065/122102
IES-6 - 50.9 Stress: perceptions of COVID-19,
self-perceived mental health and sleep quality
Good
Li (Mengyao) et al., 2020 Mar 3 to Mar
15, 2020.
China 1676 M ± SD:
20.17 ​± ​1.497
Sex(f/m):
1088/588
HAI 24.3 Panic ​= ​17.2% Anxiety: perceived lethality, being affected by the global spread, and impact on social
contacts
Anxiety: Knowledge of prognosis, preventive measures, wearing masks, and trust in mainstream media
Panic: understanding the risk
of COVID-19 and felt
Less affected.
Satisfactory
Li (Xueyan) et al., 2021 Apr26 to Apr 29, 2020. Wuhan 4355 Sex (f/m):
2146/2209
PTSD (IES-6) 16.3 PTSD: family members suspected with COVID-19, lost a loved one due to COVID-19, and family income decreased, online course difficulties and the difficulties in adapting oneself to the online courses, excessive collection of personal information, estrangement of family relatives, and harassment and insult from strangers. Satisfactory
Ma et al., 2020 Feb3 to Feb 10, 2020. Guangdong, Jiangxi Province, and Wuhan city 746, 217 Age range:
18–26 years
Sex (f/m):
414,604/331,613
IES-6, PHQ-9, GAD-7 11.0 21.1 34.9 Anxiety: Senior students and those who smoked
Anxiety and depression:confirmed or suspected cases in one's community or village, low perceived
social support, and prior mental health
problems
Stress: >3 ​h exposure to media coverage of the COVID-19 each day
Good
Meng et al., 2021 Feb14 to Feb
21, 2020.
All over China 3351 M ± SD:
21.18 ​± ​2.66
Sex (f/m):
2002/130
GAD-7,
PHQ-9
6.88 10.50 Anxiety:
COVID-19- related factors, such as a history of close contact with people under quarantine, fever or cough, and mask usage,need ways to regulate emotions, professional and psychological hotline, and psychiatric visits
provided by schools
Depression:
Married, undergraduate and postgraduate, non-medical, and urban students,
COVID-19-related factors, such as a fever or cough, and hours spent browsing COVID-19-related information, needed ways to regulate their emotions, used
professional and psychological hotlines, and had
psychiatric visits
provided by schools
Anxiety: need online curricula or books, information on prevention and self-protection, and real-time epidemic data of the
school
Depression: needed prevention and self-protection information provided by schools.
Satisfactory
Song et al., 2021 Feb 17 to Feb 23,
2020.
Anhui 1128 Age range:
18–27 years
Sex(f/m):
632/496
SAS,SDS,
CPSS
8.4 22.7 42.9 Depression and stress: Parents' annual income,
education level, and sex.
Anxiety, depression, and stress:family conflicts and specialty.
Satisfactory
Sun et al., 2021a Mar20 to Apr 10, 2020 Various regions of China 1912 M ​± ​SD:
20.28 ​± ​2.10
Sex (f/m);
1334/578
GAD-7, PHQ-9;
IES-6
34.73 46.55 67.05 Anxiety: higher level of COVID-19 prosocial behavior, perceived threat and stigma due to COVID-19, and financial stress due to COVID-19.
Depression: financial stress due to COVID-19, perceived threat and societal stigma
due to COVID-19, and screen media device usage.
Stress: financial stress due to COVID-9, and Perceived threat and societal stigma due to COVID-19.
Anxiety and depression: mindfulness and social support Satisfactory
Tang et al., 2020 Feb20 to Feb
27, 2020.
Chengdu and Chongqing 2485 Age range:
16–27 years
Sex (f/m):
1525/960
M ​± ​SD:
19.81 ​± ​1.55
PCL, PHQ-9 9.0 2.7 Depression and PTSD: feeling extreme fear, short sleep duration, living in the worst-hit areas, and being a graduating/final year student. Good
Wang (Xing) et al., 2020 Feb21 to Mar 7,
2020
China 3092 Sex (f/m):
2054/1038
GAD-7,
PSS-10,
SRSS
16.8 43.7 Sleep problems ​= ​13.5% Anxiety: reading daily news, having sleep problems, and high perceived stress
Stress: anxiety symptoms and sleep problems.
Sleep problems: Postgraduates, frequency of going out per week (1–3 times), and higher perceived stress.
Anxiety: carelessness with the number of remaining masks
Sleep problems: frequency of daily news reading (1–3 times).
Stress: higher frequency of daily news reading (4–7 times) and number of remaining masks
(more than 20).
Satisfactory
Wang (Zheng-He) et al., 2020 Jan 31 to Feb
5, 2020.
Guangzhou 44,447 Age group:
16–50 years
M ± SD:
21.0 ​± ​2.4
Sex (f/m):
24,230/20,217
Z-SAS,
CES-D
7.7 12.2 Depression: lived in province where cumulative number of confirmed cases range from 1000 to 9999, have family members and relatives confirmed and suspected with COVID-19
Anxiety and depression: cumulative number of confirmed cases in the provinces; having infected family members and relatives or not, self-reported health condition, and education level.
Anxiety and depression: postgraduate Satisfactory
Wu et al., 2021 Feb 4 to Feb 12, 2020 China 11,787 M ± SD:
20.45 ​± ​1.76
Sex (f/m):
6731/5056
GAD-7,
PHQ-9
17.8 25.9 Anxiety and depression: history of residence in or travel to Wuhan in the past month, residing in Wuhan city, college location in Wuhan, and living in areas with a median number (200–600, >1000) of confirmed COVID-19 cases Good
Xiang et al., 2020 Feb 25 to Mar
5, 2020.
China 1396 M ± SD:
20.68 ​± ​1.84
Sex(f/m): 515/881
SAS, SDS 31.0 41.8 Anxiety: lived in an only child family
Depression: female and undergraduate.
Anxiety: high level
of physical
activity (stretching and resistance training),
Depression: moderate or high
level of physical activity, (household chores and stretching)
Satisfactory
Xiong et al., 2021 Feb 20 to Mar
20, 2020
Guangdong 563 M±SD:
21.52 ​± ​2.50.
Sex(f/m): 391/172
DASS-21 Moderate to severe ​= ​18.47 Moderate to severe ​= ​12.26 Moderate to severe 8.53 Anxiety: mindful coping.
Anxiety and depression: negative emotions,
prevention of mindful coping
Anxiety and stress: awareness and negative emotions prevention of mindful coping.
Satisfactory
Yang et al., 2021 Apr to May 2020 Sichuan 521 M ​± ​SD:
22.02 ​± ​1.761
Sex(f/m):
404/117
SAS Mild ​= ​31.5
Moderate ​= ​8.1
Severe ​= ​5.8
Distress ​= ​19.0% Anxiety: medical student, paying
attention to pandemic information (frequency of >10 times a day)
Distress: medical student and general
health status
Distress: age (above
22 years)
Satisfactory
Yu (Chang) et al., 2021 Feb 15 to Feb
22, 2020.
China 1086 Sex(f/m):
737/349
Age range:
18–60 years
AIS, SRQ-20, CPSS - 40.70 16.67 General psychological symptoms ​= ​5.8% Insomnia: female, general psychological
symptoms and living in an isolation unit.
Satisfactory
Yu (Mingli) et al., 2021 Mar 3 to Mar
15, 2020
Various regions of China 1681 Sex (f/m):
1089/592
CES-D 56.8 Depression: sleep problems, family members' going out, perceived more stress for online education, fear of COVID-19, influence on social interaction and higher grades. Depression: Perceived social support, hope, female, and higher monthly
disposable income.
Satisfactory
Yu (Yanqiu) et al., 2021 Feb1 to Feb
10, 2020.
China 23,863 Sex (f/m):
16,258/7605
PHQ-9 39.1 Mental distress: 47.1% Depression: mental distress due to COVID-19, number of confirmed cases (>300 cases) detected in the province
Depression and mental distress: perceived infection risk, having close contacts with people who had visited Wuhan 2 weeks prior to the CNY, perceived discrimination due to COVID-19.
Depression: staying in the city of the university, staying with family, and self-perceived physical health, Satisfactory
Zhang (Xudong) et al., 2021 Feb21 to Feb
24, 2020,
China 2270 Age range: 18–25 years
Sex (f/m): 1393/877
SAS, SDS 8.2 21.0 Anxiety and depression: contact
history of similar
infectious disease,
past medical history, and compulsive
behaviors
Anxiety and depression: Older students, regular daily life during the epidemic outbreak, exercise during the epidemic outbreak, and concerns related to COVID-19 Satisfactory
Zhou et al., 2020
Mar 1 to Mar 15, 2020,
China
11133
Age range:
18–35years
Median ​= ​21
Sex(f/m):
6938/4195
PHQ-9,
GAD-7
24.9
37.0



Suicidal ideation ​= ​7.3%
Anxiety and depression: female, graduate students, and those with COVID-19
exposure
Suicidal ideation: anxiety and depressive symptoms
Anxiety and depression: living with Parents, being familiar with COVID-19, actively taking preventive and control measures, and being optimistic
about projections of COVID-19
Good
Normalization stage (June 2020∼current)
First author and year of publication
Time period
Region
Sample size
Sample characteristics
Measurement tool (s)
Prevalence (%) of mental health problems Related risk factors
Protective factors
NOS quality
Anxiety
Depression
Stress
PTSD
Insomnia
Other
Ren et al., 2021 Sept 14 to Sept 20,2020 Shandong 478 Sex(f/m):
273/205
SAS, PHQ-9 15.5 32.4 Anxiety: taking temperature routinely, retaining holiday, taking the final examination after school reopening, lockdown restriction, exercise frequency, quarantine of classmates, take-out availability, alcohol use, availability of package delivery, school reopening, self-quarantine after school reopening, and the degree to which family economic status is
influenced by COVID-19)
Depression: routinely wearing masks, having relatives or friends who have been infected, satisfaction with living conditions in the school, several areas in school being closed due to COVID-19, self-rated sleep quality, lockdown restriction, exercise frequency, quarantine of classmates, alcohol use, self-quarantine after school reopening, and the degree to which family economic status is influenced by COVID-19)
Satisfactory
Wang (Dongfang) et al., 2021 Jun 1 to Jun
15, 2020
Guangdong 8921 Age range:
16–25 years
M ​± ​SD:
21.59 ​± ​1.81
Sex (f/m):
5857/3064
PHQ-9, GAD-7, IES-6, YSIS 4.2 8.7 10.5 6.1 Stress: male gender, living in rural areas, or living with siblings.
Anxiety, depression, and insomnia:
history of psychiatric conditions
Poor mental health: Sophomore, history of psychiatric conditions, and impacted academic
activities and social communication
Good
Xu et al., 2021 Jun
29 to Jul 18, 2020
Wuhan 11,254 Sex (f/m): 7200/4054
Age range: 15–20 years
PHQ-9, GAD-7, ISI, PCL-5, 32.6 41.5 8.5 35.0 Suicidal behavior: 2.0% Mental health problems: positive family history of psychosis, and prior history of mental illness, distant relationship with parents, and changes in lifestyle and alcohol use
Suicidal behavior: female, high stress, changes in lifestyle and alcohol use, and high stress
Mental health problems: regular physical exercise, Good
Yu (Jincong) et al., 2021 Jul to Aug
2020
Wuhan 9383 Sex(f/m):
6698/2685
PHQ-9 15.8 Anxiety: academic stress and concerns about the epidemic
Depression: experience of being quarantined for observation or treatment, family members or friends dying of COVID-19, rarely or never seeking help from others, fewer supportive relatives or friends, less support from family in the past month, a worse relationship with parents at home, a longer time spent daily on electronic devices except for online learning, and feeling anxious in the face of returning to school.
Good
Zhang (Yifan) et al., 2021 Jun1 to Jun
15, 2020
Guangdong 146,102 Age range:
16–25 years
Sex(f/m):
90,701/55,401
YSIS 16.9 Insomnia: female, living in urban area, having a history of physical illness, or suffering depressive and anxiety
symptoms.
Insomnia: College senior degree and 7–8 ​h' sleep duration per day Good
Zheng et al., 2021 Dec17 to Dec
19,
2020.
Shandong 954 M ± SD:
21.1 ​± ​1.2
Age range ​= ​
18–28 years
Sex(f/m): 588/366
PHQ-9, GAD-7, ISI. 34.6 50.2 25.3 Anxiety: age
Depression: age and living in rural areas
Anxiety and depression: female
and native of non-Shandong
Satisfactory

Age was expressed as M ​± ​SD: Mean age ​± ​Standard deviation or range. Sex as (f/m): female/male. CS: Cross-sectional study.

PHQ-9: Patient Health Questionnaire −9, GAD-7: Generalized Anxiety Disorder-7, SDS: Self-Rating Depression Scale, SAS: Self-Rating Anxiety Scale, CES-D: Center for Epidemiologic Studies Depression Scale, Z-SAS: Zung's Self-rating Anxiety Scale, HAI: Health Anxiety Inventory subscale, CPSS:Chinese perceived stress scale, PSS-10: Perceived Stress Scale, DASS-21: Depression, Anxiety, and Stress Scale, IES-6: Impact of Event Scale 6-Item, YSIS:Youth Self-Rating Insomnia Scale, ISI: Insomnia Severity Index, AIS: Athens Insomnia Scale. PTSD: Post Traumatic Stress Disorder, PCL: PTSD Checklist, PCL-5: Post-traumatic Stress Disorder Checklist for DSM-5, PTGI: post-traumatic Growth Inventory, and SRQ-20: Self-Reporting Questionnaire-20. SRSS: Self-Rating Scale of Sleep.