Table 1 Characteristics of studies included in network meta-analysis of four different treatment strategies for the treatment of acute left malignant colonic obstruction

Okuda, 2019 [8]

Cancer Res Treat

TCT-BTS Vs ES

Japan

46

72 VS 70

Stage II-III

Laparoscopic and laparotomy

60

no-RCT

Jiang 2008 [62]

Dis Colon Rectum

DS-BTS Vs ES

China

143

68.2 VS 67.4

Stage I-III

–

120

no-RCT

Amelung, 2016 [51]

Surg Endosc

CS-BTS Vs DS-BTS

Dutch

88

71.8 VS 66.6

Stage I-IV

Laparoscopic and laparotomy

46

no-RCT

Mege, 2019 [52]

Ann Surg Oncol

CS-BTS Vs DS-BTS

France

518

72 VS 71

Stage I-IV

–

140

no-RCT

Veld, 2020 [53]

JAMA Surgery

CS-BTS Vs DS-BTS

Dutch

242

70.1 VS 69.8

uncertain

Laparoscopic and laparotomy

32

no-RCT

Kagami, 2018 [58]

World J Surg Oncol

CS-BTS Vs TCT-BTS

Japan

59

70 VS 68

Stage II-IV

Laparoscopic and laparotomy

–

no-RCT

Sato 2019 [59]

Ann Gastroenterol Surg

CS-BTS Vs TCT-BTS

Japan

76

70.8 VS 76.0

Stage II-III

Laparoscopic and laparotomy

30

no-RCT

Yang, 2019, [60]

Oncology Letters

CS-BTS Vs TCT-BTS

China

89

50.64 VS 52.04

Stage I-IV

Laparoscopic and laparotomy

12

no-RCT

Hosono 2019 [57]

Asian J Endosc Surg

CS-BTS Vs TCT-BTS

Japan

42

74 VS 74

Stage II-IV

Laparoscopic and laparotomy

21

no-RCT

Kawachi, 2018 [61]

ASIAN J SURG

CS-BTS Vs TCT-BTS Vs ES

Japan

56

69.4 VS 74.1 VS 68.9

Stage II-IV

-

–

no-RCT

Amelung, 2016 [54]

Ann Surg Oncol

CS-BTS Vs DS-BTS Vs ES

Dutch

1860

69.9 VS 64.9 VS 71.4

uncertain

Laparoscopic and laparotomy

–

no-RCT

Oistamo, 2016 [55]

World J Surg Ocol

CS-BTS Vs DS-BTS Vs ES

Sweden

100

71 VS 67 VS 74

Stage II-IV

-

–

no-RCT

Tanis, 2015 [56]

Digestive Surgery

CS-BTS Vs DS-BTS Vs ES

Dutch

1816

71 VS 68 VS 70

Stage I-IV

Laparoscopic and laparotomy

–

no-RCT

Amelung, 2017 [24]

Surg Endosc

CS-BTS Vs ES

Dutch

110

70VS70.4

Stage II-IV

Laparoscopic and laparotomy

44

no-RCT

Arezzo, 2017 [16]

Surg Endosc

CS-BTS Vs ES

Italy

115

72 VS 71

uncertain

Laparoscopic and laparotomy

36

RCT

Chen, 2019 [25]

World JGastroenterol

CS-BTS Vs ES

China

128

63.21 VS 61.58

Stage I-IV

–

-

no-RCT

Choi, 2014 [26]

Surg Endosc

CS-BTS Vs ES

Korea

240

65.2 VS 64.8

Stage II-IV

–

41.4 VS 45

no-RCT

Consolo, 2017 [27]

Turk J Gastroenterol

CS-BTS Vs ES

Italy

125

74.2 VS 70

Stage I-IV

–

–

no-RCT

Erichsen, 2015 [29]

Endoscopy

CS-BTS Vs ES

Denmark

3914

–

–

–

24

no-RCT

Flor-Lorente, 2017 [30]

Cirugia Espanola

CS-BTS Vs ES

Spain

82

72 VS 70

Stage I-IV

Laparoscopic and laparotomy

58

no-RCT

Ghazal, 2013 [18]

J Gastrointest Surg

CS-BTS Vs ES

Egypt

60

52VS51

Stage I-III

Laparotomy

18

RCT

Gorissen, J.2013 [31]

Br J Surg

CS-BTS Vs ES

England

105

70.6VS72.0

Stage I-IV

Laparoscopic and laparotomy

32VS33

no-RCT

Han, 2020 [33]

PAK J MED SCI

CS-BTS Vs ES

China

302

60.25VS 61.03

Stage II-IV

-

45.82VS44,92

no-RCT

Ho, 2017 [34]

Surgical Endoscopy

CS-BTS Vs ES

China

102

70.2 VS 70.9

Stage I-IV

Laparoscopic and laparotomy

21 VS 25.5

no-RCT

Ho, 2012 [19]

Int J Colorectal Dis

CS-BTS Vs ES

Singapore

39

68 VS 65

Stage II-IV

Laparoscopic and laparotomy

–

RCT

Kavanagh, 2013 [35]

Dis Colon Rectum

CS-BTS Vs ES

Ireland

49

69.9 VS 69.7

Stage I-III

Laparoscopic and laparotomy

27.4 VS 26

no-RCT

Kim, 2016 [36]

ANZ J Surg

CS-BTS Vs ES

Korea

168

64.6 VS 64.5

uncertain

Laparoscopic and laparotomy

45 VS 49.5

no-RCT

Kim, 2015 [37]

Surg Endosc

CS-BTS Vs ES

Korea

56

64.6 VS 70.7

Stage II-IV

Laparoscopic and laparotomy

30 VS 26

no-RCT

Kwak, 2016 [38]

Dis Colon Rectum

CS-BTS Vs ES

Korea

84

62 VS 60

Stage I-IV

Laparoscopic and laparotomy

44

no-RCT

Lee, 2013 [39]

Int J Surg

CS-BTS Vs ES

Korea

77

63.6 VS 56.6

Stage I-IV

Laparoscopic and laparotomy

38.7

no-RCT

Lim, 2017 [40]

Ann Surg Oncol

CS-BTS Vs ES

Singapore

102

65 VS 66

Stage I-III

Laparoscopic and laparotomy

48

no-RCT

Lovero, 2020 [41]

Eur J Clin Invest

CS-BTS Vs ES

Italy

45

64.7 VS 71.2

Stage I-IV

Laparoscopic and laparotomy

15

no-RCT

Morita, 2019 [42]

Surg Today

CS-BTS Vs ES

Japan

201

74 VS 70

Stage I-IV

Laparoscopic and laparotomy

–

no-RCT

Park, 2018 [44]

Int J Colorectal Dis

CS-BTS Vs ES

Korea

111

64 VS 69

Stage I-IV

Laparoscopic and laparotomy

58.2 VS 50.4

no-RCT

Park, 2016 [45]

Ann Surg Oncol

CS-BTS Vs ES

Korea

102

68.6 VS 63.1

Stage I-III

Laparoscopic and laparotomy

35.7 VS 46.6

no-RCT

Pirlet, 2011 [20]

Surg Eedosc

CS-BTS Vs ES

France

60

70.4 VS 74.7

uncertain

Laparotomy

–

RCT

Rodrigues-Pinto, 2019 [46]

Dig Liver Dis

CS-BTS Vs ES

Italy

94

67 VS 75

Stage I-IV

Laparoscopic and laparotomy

24 VS 30

no-RCT

Sabbagh, 2013 [47]

Ann Surg

CS-BTS Vs ES

France

87

69.73 VS 74.89

Stage I-IV

Laparoscopic and laparotomy

28 VS 32

no-RCT

Sloothaak, 2014 [21]

Br J Surg

CS-BTS Vs ES

Dutch

58

70 VS 67

Stage I-IV

–

45 VS 41

RCT

van den Berg, 2014 [48]

Br J Surg

CS-BTS Vs ES

Dutch

110

71 VS 72

Stage I-IV

Laparoscopic and laparotomy

–

no-RCT

Yan, 2017 [49]

J Laparoendosc Adv Surg Tech A

CS-BTS Vs ES

China

60

60.44 VS 59.36

Stage II-IV

–

–

no-RCT

Yang, 2019 [50]

Ann Surg Oncol

CS-BTS Vs ES

Korea

253

65.2 VS 63.9

Stage I-III

Laparoscopic and laparotomy

60.4 VS 53.4

no-RCT

van Hooft 2011 [23]

The lancet

CS-BTS Vs ES

Dutch

98

70.4 VS 71.4

uncertain

-

39 VS 44

RCT

Cheung, 2009/2012 [17, 22]

Arch Surg/Asian J Endosc Surg

CS-BTS Vs ES

China

48

64.5 VS 68.5

Stage I-IV

Laparoscopic and laparotomy

65 VS 32

RCT

Guo 2011 [32]

Dig Dis Sci

CS-BTS Vs ES

China

92

77 VS 76

uncertain

-

–

no-RCT

Ng 2006 [43]

J Gastrointest Surg

CS-BTS Vs ES

China

60

74 VS 73.5

Stage II-IV

Laparoscopic and laparotomy

–

no-RCT

Dastur 2008 [28]

Tech Coloproctol

CS-BTS Vs ES

England

42

75 VS 68

uncertain

21 VS 30

no-RCT