Table 1 Characteristics of the Included Studies in the Meta-Analysis of the Neurological Features of COVID-19

1

Chen and Wu, 2020

27-3-2020

The Journal of Clinical Investigation

Case series

21

China

[22]

Fair

2

Liu and Zhang, 2020

Pre-print: 13-2-2020

The Lancet Infectious Diseases

Case series

24

China

[23]

Fair

3

Wang and Gao, 2020

Pre-proof: 5-3-2020

European Respiratory Journal

Case series

18

China

[24]

Fair

4

Giacomelli, 2020

26-3-2020

Clinical Infectious Diseases

Cross-Sectional Study

59

Italy

[25]

Fair

5

Mao, 2020

10-4-2020

JAMA Neurology

Case series

214

China

[6]

Fair

6

Xu and Yu, 2020

28-2-2020

European Journal of Nuclear Medicine and Molecular Imaging

Case series

90

China

[26]

Fair

7

Jin, 2020

24-3-2020

BMJ

Case series

651

China

[27]

Fair

8

Chen and Zhou, 2020

15-2-2020

The Lancet

Case series

99

China

[28]

Fair

9

Li and Li, 2020

Pre-print:12-2-2020

MDrxiv

Case series

17

China

[29]

Fair

10

Qian, 2020

17-3-2020

QJM

Case series

91

China

[30]

Fair

11

Xu and Wu, 2020

10-2-2020

BMJ

Case series

62

China

[31]

Fair

12

Huang and Wang, 2020

24-1-2020

Lancet

Case series

41

China

[32]

Fair

13

Wan, 2020

21-3-2020

Journal of Medical Virology

Case Series

135

China

[33]

Fair

14

Yang and Yu, 2020

24-2-2020

The Lancet Respiratory Medicine

Cohort - Retrospective

52

China

[34]

Fair

15

Liu and Fang, 2020

7-2-2020

Chinese Medical Journal

Case series

137

China

[35]

Fair

16

Guan, 2020

28-2-2020

The new england journal of medicine

Case series

1099

China

[2]

Fair

17

Wang and Hu, 2020

7-2-2020

JAMA

Case series

138

China

[36]

Fair

18

Qin and Qiu, 2020

Pre-print: 20-2-2020

TheLancet

Case series

89

China

[37]

Good

19

Yang and Cao, 2020

26-2-2020

The Journal of Infection

Case series

149

China

[38]

Fair

20

Qin and Zhou, 2020

12-3-2020

Clinical Infectious Diseases

Case series

452

China

[39]

Fair

21

Liu and Liu, 2020

12-2-2020

Preprint: medRxiv

Case series

61

China

[40]

Fair

22

Easom, 2020

29-3-2020

Influenza Other Respir Viruses

Case series

68

UK

[41]

Fair

23

Deng, 2020

20-3-2020

Chinese Medical Journal

Case series

225

China

[42]

Good

24

Huang and Tu, 2020

27-2-2020

Travel Medicine and Infectious Disease

Case series

34

China

[43]

Fair

25

Mo, 2020

16-3-2020

Clinical Infectious Diseases

Case series

155

China

[44]

Fair

26

Li and Wang, 2020

Pre-print:17-3-2020

The Lancet

Case series

221

China

[10]

Good

27

Zheng and Tang, 2020

24-3-2020

European Review for Medical and Pharmacological Sciences

Case series

161

China

[45]

Fair

28

Guo, 2020

Pre-print: 14-4-2020

The Lancet

Case series

118

China

[46]

Good

29

Yan, 2020

Pre-print: 6-4-2020

The Lancet

Case series

218

China

[47]

Good

30

Chang, 2020

17-3-2020

JAMA

Case series

13

China

[48]

Fair

31

Wang and Pan, 2020

Pre-proof: 11-4-2020

International Journal of Infectious Diseases

Case series

125

China

[49]

Fair

32

Zhou and Sun, 2020

Pre-print: 16-3-2020

BMC Infectious Diseases

Case series

201

China

[50]

Fair

33

Zheng and Xu, 2020

10-4-2020

Journal of Clinical Virology

Case series

99

China

[51]

Fair

34

Helms, 2020

15-4-2020

NEJM

Case series

58

France

[52]

Fair

35

Lechien, 2020

6-4-2020

European Archives of Oto-Rhino-Laryngology

Cross-Sectional Study

417

Belgium, France, Spain, Italy

[53]

Fair

36

Chen and Chen, 2020

Pre-print: 1-4-2020

The Lancet

Case series

85

China

[54]

Fair

37

Jiang, 2020

Pre-print: 14-4-2020

medRxiv

Case series

55

China

[55]

Good

38

Zhang, 2020

Pre-proof: 9-4-2020

Journal of Clinical Virology

Case series

221

China

[56]

Fair

39

Tabata, 2020

Pre-print: 18-3-2020

The Lancet

Case series

104

Japan

[57]

Fair

40

Lei, 2020

Pre-proof: 9-4-2020

Travel Medicine and Infectious Disease

Case series

20

Guangzhou, China

[58]

Fair

41

Zhou and Yu, 2020

28-3-2020

The Lancet

Cohort - Retrospective

191

China

[59]

Fair

42

Spinato, 2020

22-4-2020

JAMA

Cross-sectional Study

202

Italy

[60]

Fair

43

Klok, 2020

10-4-2020

Thrombosis Research

Case series

184

Netherlands

[61]

Fair

44

CNIRST, 2020

19-4-2020

NA

Case series

6606

Australia

[62]

Fair