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Table 1 Basic characteristics of the included articles

From: HLA alleles associated with COVID-19 susceptibility and severity in different populations: a systematic review

Typed Loci

Population

Sample size (cases/controls)

Study

Year

HLA-A/B/C, DRB1/3/4/5, DQA1, DQB1, DPA1, DPB1,

Chinese

82

3790

Wei Wang et al.

2020

HLA-A/B/C, DQA1, DPA1, DRB1/3/4/5, DQB1, DPB1

Italian

99

1017

Antonio Novelli et al.

2020

HLA-A, B, C/DRB1 and DQB1,

Spanish

72

3886

Lorente et al.

2020

33 different HLA-B alleles

Chinese

190

3829

Yung Yuk Lin et al.

2020

HLA-A, B, and C

Italian

NA

490,926

Pierpaolo Correale et al.

2020

HLA-A, B, C and DRB1

Italian

182

619

Roberto Littera et al.

2020

HLA class I(A, B,C) and II(DRB1, DQA1, DQB1, DPB1)

Chinese

332

NA*

Fang Wang et al.

2020

HLA-A, -B, -C, -DRB1/3/4/5, and HLA-DQB1

British

80

10,308

Poulton Kay et al.

2020

HLA-A, B, C/DRB1/ and DQB1

Saudi Arabian

135

135

Fatmah Naemi et al.

2021

HLA-A, -C, -B, -DQA1 and -DPA1/ (HLA-DRB1, -DRB3, -DRB4, -DRB5, -DQB1 and -DPB1)

Japanese

190

423

Seik-Soon Khor et al.

2021

HLA-DRB1 and DQB1

Iranian

144

153

Samaneh Ebrahimi et al.

2021

HLA-A, B and DR

Iranian

48

500

Ramin Hamidi Farahani et al.

2021

HLA-A, -B, -C, -DPA1, -DPB1, -DQA1, -DQB1, -DRB1, -DRB3/4/5

Midwestern United States

234

22,000

Emily Schindler et al.

2021

HLA class I (A, B and C) and class II (DRB1)

Japanese

178

NA*

Alitzel Anzurez et al.

2021

HLA-A, B, and DRB1

Italian

265

56,039

Antonio Amoroso et al.

2021

HLA-A, B, C and DRB1, DQA1, and DQB1

South Asian (Bangladeshis, Indians, and Pakistanis)

95

NA*

Fatmah Naemi et al.

2021

HLA-A, -B, -C, -DRB1, and -DQB1

Israelis

6413

66,499

Shay Ben Shachar et al.

2021

HLA class I (HLA-A, -B and -C) and II (HLA-DRB1 and HLA-DQB1)

Spanish

450

495

Juan Francisco Gutiérrez-Bautista et al.

2021

  1. *NA, not available