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. 2016 Mar 16;2016:6408067. doi: 10.1155/2016/6408067

Table 1.

Baseline characteristics of studies included in the meta-analysis.

Author/(yr) Type Group Covering material Number M/F Mean age (yr) Tumor etiology
Pancreatic cancer
n (%)
Cholangiocarcinoma
n (%)
Ampullary cancer
n (%)
Gallbladder cancer
n (%)
Metastatic lymph nodes
n (%)
Unknown
n (%)
Kullman et al. 2010 [2] RCT CSEMS Polycarbonate-polyurethane 188 88/112 79.0 (39–100) 152 (76) 12 (6) 8 (4) 8 (3) 16 (8) 4 (2)
UCSEMS 191 91/109 76.0 (51–95) 155 (77) 10 (5) 9 (4) 3 (2) 18 (9) 5 (3)
Gwon et al. 2010 [7] NRCT CSEMS PTFE 58 37/21 63.8 (35–84) 18 (31.0) 11 (19.0) 6 (10.3) 19 (32.8) 4 (6.9)
UCSEMS 58 39/19 62.7 (24–86) 17 (29.3) 16 (27.6) 5 (8.6) 19 (32.8) 1 (1.7)
Krokidis et al. 2010 [8] RCT CSEMS Viabil 30 20/10 66.5 (52–78) 30 (100)
UCSEMS 30 16/14 63.7 (46–73) 30 (100)
Krokidis et al. 2011 [9] RCT CSEMS ePTFE/FEP 40 17/23 65.0 ± 8.8 35 (87.5)
UCSEMS 40 36/4 63.5 ± 9.8 32 (80)
Li et al. 2012 [10] NRCT CSEMS ePTFE 35 20/15 64.4 ± 11.3 5 (14.3) 22 (62.9) 5 (14.3) 1 (5.9) 2 (2.6)
UCSEMS 47 30/17 63.2 ± 11.5 9 (19.1) 31 (65.9) 6 (12.8) 0 (0.0) 1 (2.2)
Kitano et al. 2013 [11] RCT CSEMS Antimigration 60 25/35 70.6 ± 10.7 60 (100)
UCSEMS 60 29/31 68.7 ± 8.9 60 (100)
Ung et al. 2015 [12] RCT CSEMS Hanaro 34 18/16 77.0 (54–88) 30 (88) 1 (3) 2 (6) 2 (5.9)
UCSEMS 34 9/15 79.0 (54–92) 27 (79) 3 (9) 5 (15) 1 (2.9)
Yang et al. 2015 [13] RCT CSEMS Silicone 51 34/17 68.7 ± 11.2 29 (56.9) 17 (33.3) 2 (3.9) 2 (3.9) 1 (2)
UCSEMS 52 30/22 68.0 ± 11.3 36 (69.2) 7 (13.5) 2 (3.8) 5 (9.6) 2 (3.8)

RCT: randomized control trial; NRCT: nonrandomized control trial; CSEMS: covered self-expandable metallic stents; UCSEMS: uncovered self-expandable metallic stents; M: male; F: female.