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. 2020 Apr 6;16(4):752–763. doi: 10.5114/aoms.2020.94160

Table I.

Baseline characteristics and quality of included studies

Study Study design Participants Sex Size of tube (Fr) Age (mean and SD or range)
External drainage Internal drainage
EBS
Male Female External drainage Internal
drainage
EBS
External drainage Internal drainage
EBS
Total quality score
ENBD PTBD ENBD PTBD ENBD PTBD
Jung et al. [9] RC 13 43 42 60 38 7 7–10 7–10 58.9 (42–77) 65 (40–82) 61.1 (29–80) 7
Sugiyama et al. [10] RC 38 0 38 19 57 NA NA 69 (40–85) 68 (49–80) 6
Huang et al. [11] RC 18 45 37 71 29 7 10 10 60.6 ±8.4 57.5 ±10.1 58.1 ±8.3 7
Fujii et al. [12] RC 50 0 72 76 46 5–7 5 66.5 (39–83) 67 (38–84) 7
Kishi et al. [13] RC 28 99 44 135 36 NA NA NA 65 (44–80) 65 (31–82) 65 (43–86) 7
Sasahira et al. [14] RC 166 0 253 106 60 NA NA 70 (63–76) 69 (62–75) 7
Kawakami et al. [15] RC 60 48 20 60 20 5–7 7–10 7–8.5 71 (45–81) 71 (45–81) 70 (59–77) 7
Kawakubo et al. [16] RC 85 0 33 74 44 NA NA 69 ±9 for all patients 6
Kitahata et al. [17] RC 10 50 67 NA NA 7 7 NA 70 ±9 68 ±8 6
Hashimoto et al. [18] RC 21 0 84 NA NA 6 or 7.2 6–10 NA NA 6

ENBD – endoscopic nasobiliary drainage, PTBD – percutaneous transhepatic biliary drainage, EBS – endoscopic biliary stenting, NA – data not applicable, RC – retrospective case-control study.