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Table 1 The basic characteristics of the included studies

From: Efficacy of neuroendoscopy-assisted surgery in the treatment of chronic subdural hematoma: a meta-analysis

Study (ref.)

Sample size (T/C)

Man

/woman

Age (years)(T/C)

Hematoma volume(ml)

T

C

Main outcomes

Wu, 2023

46/46

53/39

67.42 ± 4.61/67.45 ± 4.60

None

ND

BH

①②③④⑥

Ma, 2023

48/32

67/43

64.12 ± 7.40/63.58 ± 2.93

42.33 ± 91.11/81.25 ± 4.94

ND

BH

①④⑤⑥

Fang, 2022

41/83

100/24

59.67–68.87/61.26–61.28

109.31–130.03/106.30–128.64

ND

BH

â‘ 

Chen, 2022

28/35

34/29

60.25 ± 4.13/60.73 ± 4.14

91.17 ± 7.51/91.69 ± 7.53

ND

BH

①②③④⑤⑥

Chu, 2021

34/34

45/23

63.57 ± 2.94/63.76 ± 3.22

81.26 ± 4.93/81.46 ± 4.98

ND

BH

③④⑤⑥

Deng, 2021

39/39

48/30

73.89 ± 5.01/72.59 ± 4.86

169.54 ± 9.86/165.73 ± 9.51

ND

BH

①②③④⑤⑥

Du, 2020

45/49

59/35

73.2 ± 5.5/70.6 ± 6.1

96.8 ± 19.2/104.3 ± 21.3

ND

BH

①③④

Dai, 2019

52/64

62/54

48.52 ± 6.25

None

ND

BH

â‘ 

Guan, 2019

31/126

94/63

68.3(60–81)/71.4(61.3–87.5)

109.3(30.4–167.9)/114.6 (35.2–157.5)

ND

BH

①④⑤⑥

Zhang, 2018

42/31

54/19

74.3(67–91)/75.1(58–95)

30.3–200.2/37.6–171.5

ND

BH

â‘ 

Shi, 2018

30/30

None

51.5/53.2

None

ND

BH

â‘ â‘¥

An, 2018

52/54

82/24

68.75 ± 8.19/66.78 ± 8.71

82.46 ± 14.96/82.69 ± 14.44

ND

BH

①②④⑤

Chen, 2018

40/25

51/14

58.13 ± 9.71/55.52 ± 8.07

32.84 ± 7.02

ND

BH

①④⑤⑥

Hu, 2018

34/34

36/32

61.8 ± 4.1/62.6 ± 3.9

None

ND

BH

④⑥

Jiao, 2018

60/60

None

None

None

ND

BH

①②④⑤

Yan, 2017

24/52

51/25

66.00 ± 6.89/66.38 ± 9.35

None

ND

BH

①④⑤

Zhu, 2017

74/87

141/20

70.47 ± 11.73/68.57 ± 11.27

121.76 ± 32.24/119.14 ± 37.85

ND

BH

①④⑤

Kunting, 2022

13/216

169/60

71.06 ± 15.78/71.23 ± 9.89

None

ND

BH

â‘ â‘£

Yadav, 2020

68/68

84/52

45–79

None

ND

BH

â‘¥

Amano, 2021

97/283

243/137

77.1 ± 10.3/76.8 ± 10.5

None

ND

BH

①④⑥

  1. T trial group, C control group, ND neuroendoscopy, BH Burr-hole
  2. ① Recurrence rate, ②Recovery rate, ③Total effective rate, ④Operative time, ⑤Hospital stay, ⑥Complications