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Table 1 The characteristics of patients associated with this study

From: The 2 years’ long-term efficacy and safety of peroral endoscopic myotomy for the treatment of achalasia: a systematic review

Author

Country

Study design

Year

Case

M/F

Mean age (range) (years)

Mean symptoms duration (range) (months)

Prior treatment n(%)

Mean follow-up (range) (months)

EBD

BTI

LHM

Others

Overall

Hu et al. [12]

China

Prospective

2015

32

17/15

43.6 (18.0~72.0)

40.8 (1.2~600.0)

14 (43.8)

3 (9.4)

3 (9.4)

3 (9.4)

23 (71.9)

30.0 (24.0~44.0)

Peng et al. [13]

China

Retrospective

2017

13

8/5

37.5 ± 13.0

46.8 ± 33.6

3 (23.1)

0 (0)

0 (0)

3 (23.1)

6 (46.2)

46.2 ± 4.1

Zhang et al. [14]

China

Retrospective

2017

32

16/16

43.3 (16.0~79.0)

24.0 (2.4~336.0)

0 (0)

1 (3.1)

0 (0)

0 (0)

1 (3.1)

27.0 (24.0~51.0)

Chen et al. [15]

China

Prospective

2015

27

11/16

13.8 (6.0~17.0)

20.4 (2.4~36.0)

5 (18.5)

1 (3.7)

0 (0)

9 (33.3)

15 (55.6)

24.6 (15.0~38.0)

Lv et al. [16]

China

Retrospective

2016

6

1/5

49.0 (21.0~72.0)

96.0 (24.0~300.0)

0 (0)

0 (0)

0 (0)

2 (33.3)

2 (33.3)

34.5 (median)

Zhang et al. [17]

China

Retrospective

2017

21

9/12

38.0 (15.0~64.0)

26.0 (10.0~360.0)

0 (0)

3 (14.3)

0 (0)

1 (4.8)

4 (19.1)

42.0 (9.0~62.0)

Meng et al. [18]

China

Retrospective

2017

32

13/19

44.8 ± 11.6

24.0 (12.0~60.0)

0 (0)

0 (0)

0 (0)

0 (0)

0 (0)

25.0 ± 11.0

Duan et al. [19]

China

Retrospective

2017

123

63/60

42.1 (14.0~74.0)

60.0 (6.0~396.0)

11

4

0 (0)

3

18

30.0 (24.0~46.0)

Teitelbaum et al. [20]

USA

Prospective

2017

36

16/20

55.0 (20.0~88.0)

NR

NR

NR

0 (0)

18 (50.0)

18 (50.0)

65.0 (median)

Amy Tyberg et al. [21]

USA

Prospective

2017

51

24/27

54.2

134.4

0 (0)

0 (0)

43 (84.0)

NR

45 (88.0)

24.4 (12.0~52.0)

Total

   

373

178/195

42.1

52.5

33 (8.8)

12 (3.2)

46 (12.3)

39 (10.5)

132 (35.4)

30.0

  1. NR Not reported, M/F Male/Female, EBD Endoscopic balloon dilatation, BTI:Botulinum toxin injections, LHM:Laparoscopic Heller myotomy