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

From: Neurological manifestations and complications of coronavirus disease 2019 (COVID-19): a systematic review and meta-analysis

# Author Date (DD/MM/Y) Journal Study type N Country Reference Study quality
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
  1. DD/MM/Y Day, Month, Year. NA not applicable