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Table 1 Characteristics of included studies

From: Cardiovascular complications and outcomes among athletes with COVID-19 disease: a systematic review

No

Study

Country

Study design

No. of participants

Type of athlete

Age

(Mean ± SD)

Study Period*

NOS Quality Score

1

Rajpal et al. [6]

United States

Cross-sectional

26

College student athletes

19.5 ± 1.5

June-August 2020

6 ¥

2

Brito et al. [9]

United States

Cross-sectional

54

College student athletes

19

July 2020

7 ¥

3

Erickson et al. [10]

United States

Cross-sectional

170

College student athletes

19.56 ± 1.51 for Men (N = 91); 19.44 ± 1.19 for Women (N = 79)

August 1-December 30, 2020

7 ¥

4

Hendrickson et al. [11]

United States

Cross-sectional

137

Collegiate athletes

20 (18–27)

July 9-October 21, 2020

5 ¥

5

Vago et al. [12]

Hungary

Cross-sectional

12

Elite athletes

23 (20–23)

NR

4 ¥

6

Daniels et al. [13]

United States

Cross-sectional

1597

College athletes

22 (10–77)

March 1-December 15, 2020

6 ¥

7

Cavigli t al. [14]

Italy

Cross-sectional

90

Professional

athletes

24 ± 10

NR

5 ¥

8

Martinez et al. [15]

United States

Cross-sectional

789

Professional

athletes

25 (19–41)

May and October 2020

5 ¥

9

Małek et al. [16]

Poland

Retrospective cohort

26

Elite athletes

24

August and October 2020

6 §

10

Cavarretta et al. [17]

Italy

Cohort

30

Professional soccer players

22

2020

4 §

11

Mascia et al. [18]

Italy

Retrospective cohort

58

Professional soccer players

NA

2020

4 §

12

Clark et al. [8]

United States

Retrospective cohort

59

Collegiate athletes

20 (19–34)

NR

7 §

13

Moulson et al. [19]

United States

Prospective cohort

3018

Colleges and universities athletes

20 (2)

September 1-December 31, 2020

7 §

14

Gervasi et al. [20]

Italy

Retrospective cohort

18

Professional

soccer players

22 (21–27)

NR

6 §

15

Starekova et al. [21]

United States

Case series

145

College student athletes

19.6 ± 1.3

January 1- November 29, 2020

-

  1. *Study period represents the period when the participants were diagnosed with COVID-19
  2. ¥ NOS for Cross-sectional studies
  3. § NOS for Cohort studies
  4. Case series cannot be assessed by NOS
  5. NR: Not reported