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Table 1 Characteristics of included studies

From: Usefulness of speckle-tracking echocardiography for early detection in children with Duchenne muscular dystrophy: a meta-analysis and trial sequential analysis

First author

Year

Number of cases (DMD/control)

Male (DMD/control, %)

Age (year)

Weight (DMD/control, kg)

Height (DMD/control, cm)

Heart rate (DMD/control, bpm)

Country

NOS score

DMD

Control

Ryan

2013

63/61

100%/100%

5.6 ± 0.2

5.2 ± 0.2

19.7/21.0

106.7/111.4

100.8/87.7

USA

9

Spurney

2015

35/33

NR

13.0 ± 2.0

13.0 ± 3.0

NR

NR

92.0/67.0

USA

8

Taqatqa

2016

19/16

100%/100%

11.0 ± 3.7

12.6 ± 3.1

38.0/54.4

136.0/164.0

98/69

USA

7

Cho

2018

13/26

NR

9.7 ± 2.2

9.7 ± 2.2

NR

NR

91/80

Korea

7

Yu

2019

56/31

NR

8.8 ± 1.9

8.4 ± 1.8

27.9/28.9

128.6/132.1

NR

China

8

Wang

2019

30/30

NR

7.8 ± 1.8

8.3 ± 1.7

27.7/28.1

122.6/126.6

89/91

China

6

Amedro

2019

36/72

100%/100%

11.0 ± 3.8

10.0 ± 3.5

36.8/37.9

134.9/143.7

96/75

Europe

9

Habib

2019

17/30

82%/83%

14.5 ± 3.7

22.3 ± 9.5

55.4/54.9

110.0/146.0

92/84

Egypt

6

  1. DMD Duchenne muscular dystrophy, NOS Newcastle–Ottawa Scale, NR No reported