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Table 1 Characteristics of studies included in our systematic review

From: Neurological manifestations of COVID-19: a systematic review

SN

Study

Type of publication

Country

Source

Neurological manifestation

1

Mao 2020 [5]

Retrospective study

China

JAMA Neurology

Total patients: 214

Any: 78 (36.44%)

CNS: 53 (24.76%)

• Dizziness: 36 (16.82%)

• Headache: 28 (13.08%)

• Impaired consciousness: 16 (7.4%)

• Acute cerebrovascular disease: 6 (2.8%)

• Ataxia: 1 (0.5%)

• Epilepsy: 1 (0.5%)

PNS: 19

• Hypoguesia: 12 (5.6%)

• Hyposmia: 11 (5.14%)

• Neuralgia: 5 (2.33%)

Muscle injury: 23 (10.74%)

2

Li 2020 [7]

Retrospective study

China

SSRN (preprint)

Total patients: 224

• Acute ischemic stroke: 11 (5%)

• Cerebral venous sinus thrombosis: 1 (0.5%)

• Intracerebral hemorrhage: 1 (0.5%)

3

Toscano 2020 [8]

Case-report/series

Italy

The New England Journal of Medicine

Guillain-Barré syndrome

4

Zhao Hua 2020 [9]

Case-report/series

China

The Lancet Neurology

Guillain-Barré syndrome

5

Gutiérrez-ortiz 2020 [10]

Case-report/series

Spain

Neurology

Miller Fisher syndrome and polyneuritis cranialis

6

Poyiadji 2020 [11]

Case-report/series

USA

Radiology

Encephalitis

7

Huaxia 2020 [12]

Newspaper article

China

Xinhua News

Encephalitis

8

Zhai 2020 [13]

Case-report/series

China

Research square (preprint)

Ischemic stroke

9

Sharifi-Razavi 2020 [14]

Case-report/series

Iran

New Microbes and New Infections

Intra-cerebral hemorrhage

10

Filatov 2020 [15]

Case-report/series

USA

Cureus

Encephalopathy

11

Zhao Kang 2020 [16]

Case-report/series

China

medRxiv (preprint)

Acute myelitis

12

Karimi 2020 [17]

Case-report/series

Iran

Iran Red Crescent Medical Journal

Encephalopathy

13

Chen Tao 2020 [18]

Retrospective study

China

BMJ

Total: 274 patients

• Myalgia: 60

• Headache: 31

• Hypoxic encephalopathy: 24

14

Qiu 2020 [19]

Retrospective study

China

The Lancet Infectious disease

Total: 36 patients

• Headache: 3 patients

15

Zhou 2020 [20]

Retrospective study

China

The Lancet

Total: 191 patients

• Myalgia: 29 patients

16

Guan 2020 [1]

Retrospective study

China

The New England Journal of Medicine

Total: 1099 patients

• Headache: 150 patients

• Myalgia: 164

17

Chen Nanshan 2020 [21]

Retrospective study

China

The Lancet

Total: 99 patients

• Headache: 8

• Myalgia: 11

• Confusion: 9

18

Huang 2020 [2]

Retrospective study

China

The Lancet

Total: 41

• Myalgia: 18

• Headache: 3

19

Wang 2020 [22]

Retrospective study

China

JAMA

Total: 138

• Myalgia: 48

• Headache: 9

20

Giacomelli 2020 [23]

Retrospective study

Italy

Clinical Infectious Diseases

Smell/taste disorder

21

Moriguchi 2020 [24]

Case-report/series

Japan

International Journal of Infectious Diseases

Meningitis/encephalitis

22

Jin 2020 [25]

Case-report/series

China

Emerging Infectious Diseases

Rhabdomyolysis

23

Fu 2020 [26]

Case-report/series

China

Research square (preprint)

Two cases of ischemic stroke

24

Ye 2020 [27]

Case-report/series

China

Brain, Behavior, and Immunity

Encephalitis

25

Wan 2020 [28]

Case-report/series

China

Research Square (preprint)

Bell’s palsy

26

Pilotto 2020 [29]

Case-report/series

Italy

medRxiv (preprint)

Encephalopathy

27.

Zhang 2020 [30]

Case-report/series

USA

medRxiv (preprint)

Acute disseminated encephalomyelitis

28.

Bernard-valnet 2020 [31]

Case-report/series

Switzerland

medRxiv (preprint)

Encephalitits

29.

Padroni 2020 [32]

Case-report/series

Italy

Journal of Neurology

Guillain-Barré syndrome

30.

Sedaghat 2020 [33]

Case-report/series

Iran

Journal of Clinical Neuroscience

Guillain-Barré syndrome

31.

Virani 2020 [34]

Case-report/series

USA

ID Cases

Guillain-Barré syndrome

32.

Yan 2020 [35]

Retrospective study

USA

International Forum of Allergy & Rhinology

Smell/taste disorder

33.

Lechien 2020 [36]

Prospective study

Multicentre study in Europe

European archives of oto-rhino-laryngology

Smell/taste disorder

34.

Moein 2020 [37]

Prospective study

Iran

International Forum of Allergy & Rhinology

Smell/taste disorder

35.

Haddadi 2020 [38]

Case-report/series

Iran

Cureus

Intracerebral hemorrhage

36.

Oxley 2020 [39]

Case-report/series

USA

The New England Journal of Medicine

Ischemic stroke

37.

Lu 2020 [40]

Retrospective study

China

Epilepsia

Total patients: 304

• Encephalopathy: 8