Table 2.
Characteristics of studies included in the meta-analysis of gastric endoscopic submucosal dissection
| Ref. | Data period, yr | Country | Patients, n | Age, mean (range), yr | Female, % | Tumor, n | Tumor size, mean (range), mm | Procedure length, mean (range), min |
| Sattianayagam et al[21] | 2008-2012 | Australia | 10 | 75 (43-86) | NA | 12 | 35 (15-65) | NA |
| Cardoso et al[22] | 2005-2007 | Brazil | 12 | 71.2 (27-91) | 50 | 15 | 16.8 (8-20) | 140 |
| Chaves et al[23] | 2007-2009 | Brazil | 15 | 67.1 (32-81) | 20 | 16 | 16.2 (6-35) | 85 (20-150) |
| Santos et al[24] | 2010-2011 | Brazil | 9 | 65 (58-73) | 0 | 9 | 28.6 (20-45) | 103 (60-240) |
| Xu et al[25] | 2006-2009 | China | 120 | 51.5 (26-75) | 40 | 120 | 18.8 (8-30) | 64.6 (30-120) |
| He et al[26] | 2008-2012 | China | 144 | 55.8 (18-78) | 72 | 145 | 15.14 | 63.4 (20-180) |
| Zhang et al[27] | 2008-2011 | China | 18 | 65.3 (30-71) | 61 | 18 | 26 (10-35) | 90 (50-120) |
| Probst et al[28] | 2003-2010 | Germany | 83 | 68.6 (41-87) | 40 | 91 | NA | 142 (60-420) |
| Schumacher et al[29] | 2008-2010 | Germany | 30 | 61 (35-93) | 43 | 30 | 25 (20-70) | 74 (15-402) |
| Catalano et al[30] | 2005-2007 | Italy | 12 | 68 (38-83) | 100 | 12 | NA | 111 (62-150) |
| Coda et al[31] | 2007-2009 | Italy | 7 | 72 (61-83) | 43 | 7 | 26 (15-50) | 123 (50-360) |
| Hirasaki et al[32] | 2000-2004 | Japan | 144 | 70 (45-91) | NA | 144 | 13 | 73 |
| Yokoi et al[33] | 1999-2003 | Japan | 46 | 67 (45-89) | 9 | 46 | NA | NA |
| Ono et al[34] | 2000-2007 | Japan | 408 | 67 | NA | 444 | NA | NA |
| Hirasawa et al[35] | 2000-2009 | Japan | 58 | 69.3 | 21 | 58 | 20.3 (3-50) | 82 (22-275) |
| Yoshinaga et al[36] | 2001-2006 | Japan | 24 | 61.7 (37-85) | 8 | 25 | 16.5 (3-60) | NA |
| Takenaka et al[37] | 2001-2005 | Japan | 275 | NA | NA | 306 | NA | NA |
| Miyahara et al[38] | 2001-2010 | Japan | 1082 | 71.7 (36-92) | 29 | 1190 | NA | 99.8 (10-675) |
| Ohnita et al[39] | 2001-2010 | Japan | 1209 | 72 (33-95) | 27 | 1322 | NA | NA |
| Oka et al[40] | 2002-2004 | Japan | 185 | NA | NA | 195 | 19.4 (5-100) | 84.4 |
| Shimura et al[41] | 2002-2005 | Japan | 55 | 71.4 (46-91) | 22 | 59 | 15.5 | 58 (7-640) |
| Hirasaki et al[42] | 2002-2006 | Japan | 112 | 70 (45-89) | NA | 112 | 19 | 69 |
| Ohta et al[43] | 2002-2010 | Japan | 1500 | NA | NA | 1795 | NA | NA |
| Kamada et al[44] | 2002-2010 | Japan | 46 | 65.5 (29-90) | 48 | 46 | NA | NA |
| Toyonaga et al[45] | 2002-2007 | Japan | 821 | 71 (31-93) | 34 | 1136 | 13 (1-105) | NA |
| Kosaka et al[46] | 2002-2007 | Japan | 438 | 69.4 | 26 | 438 | 14.6 | 47 (8-345) |
| Yamaguchi et al[47] | 2003-2005 | Japan | 54 | NA | NA | 54 | 19.1 (30-70) | 129 (29-440) |
| 1Akasaka et al[48] | 2003-2008 | Japan | 1188 | 71 | 27 | 1188 | 20 (2-105) | 90 (6-750) |
| Ono et al[49] | 2003-2011 | Japan | 80 | 69.6 | 20 | 80 | NA | 83.7 |
| 1Toyokawa et al[50] | 2003-2010 | Japan | 967 | NA | 32 | 1123 | 18 | 98 |
| Tanabe et al[51] | 2003-2007 | Japan | 421 | 69 (41-91) | 23 | 421 | NA | 67 (7-360) |
| Shimamura et al[52] | 2004-2012 | Japan | 521 | NA | NA | 616 | NA | NA |
| Takahashi et al[53] | 2004-2013 | Japan | 459 | 71.4 | 25 | 459 | 17.2 | NA |
| Yamamoto et al[54] | 2005-2011 | Japan | 1430 | 69.6 | 28 | 1520 | 15.3 | 101 |
| Higashimaya et al[55] | 2005-2011 | Japan | 891 | 69.1 | 27 | 1027 | 18.3 | NA |
| Hoteya et al[56] | 2005-2010 | Japan | 1224 | 68 | 24 | 1463 | 21 | 89 |
| Matsumura et al[57] | 2005-2014 | Japan | 413 | 72.1 | 30 | 425 | 18.4 | NA |
| Sohara et al[58] | 2006-2011 | Japan | 681 | 70.9 (45-91) | 40 | 850 | 20.8 (2-150) | 42 (4-360) |
| 1Nishimura et al[59] | 2006-2012 | Japan | 669 | 71 | 27 | 750 | NA | NA |
| Tsuji et al[60] | 2007-2009 | Japan | 328 | 68 | 29 | 398 | 43 | 69 |
| Akahoshi et al[61] | 2007-2009 | Japan | 35 | 72 (52-85) | 34 | 35 | 15.6 | 104 (33-264) |
| Mukai et al[62] | 2007-2010 | Japan | 142 | 72.4 | 32 | 161 | NA | 81 |
| Tanaka et al[63] | 2008-2011 | Japan | 32 | 71 (56-84) | 63 | 33 | 17 (4-67) | 111 (23-399) |
| Okamoto et al[64] | 2009-2010 | Japan | 45 | 69 (49-83) | 29 | 45 | 14 (10-35) | 80 |
| Watari et al[65] | 2010-2012 | Japan | 94 | 70.9 (48-87) | 24 | 98 | NA | NA |
| Sumiyama et al[66] | 2010-2012 | Japan | 100 | NA | 18 | 105 | 18 (3-53) | 34 (4-151) |
| Kusano et al[67] | 2011-2012 | Japan | 10 | 69.2 | 20 | 10 | 16.3 | 130.5 |
| Kawamura et al[68] | NA | Japan | 4 | NA | 25 | 4 | 24 (14-36) | 50.5 (28-72) |
| Lee et al[69] | 2003-2008 | South Korea | 461 | 62 | 30 | 487 | NA | NA |
| Kim et al[70] | 2003-2006 | South Korea | 337 | NA | 23 | 337 | 16 | 49 |
| 1Shin et al[71] | 2003-2010 | South Korea | 1105 | 65 (27-87) | 32 | 1105 | NA | NA |
| Jang et al[72] | 2004-2007 | South Korea | 402 | 60 (34-84) | 37 | 402 | NA | NA |
| Kim et al[73] | 2004-2007 | South Korea | 142 | 62 | 34 | 142 | NA | NA |
| Kang et al[74] | 2005-2008 | South Korea | 456 | 62.4 | 23 | 456 | 20.6 | NA |
| Goh et al[75] | 2005-2009 | South Korea | 210 | NA | NA | 210 | NA | NA |
| Ahn et al[76] | 2005-2008 | South Korea | 889 | 62.8 | 23 | 916 | 21.5 | 37.5 |
| Yoo et al[77] | 2005-2010 | South Korea | 729 | 64 (55-70) | 26 | 823 | 18 (12-25) | 52 (33-84) |
| Lim et al[78] | 2005-2011 | South Korea | 24 | 63 (56-75) | 21 | 24 | 16 (4-52) | 42 (16-103) |
| Park et al[79] | 2005-2011 | South Korea | 916 | 62 | 73 | 931 | NA | NA |
| Chung et al[80] | 2005-2010 | South Korea | 76 | 61.1 | 42 | 76 | NA | NA |
| Kim et al[81] | 2007-2012 | South Korea | 126 | 55 (28-85) | 44 | 126 | 12 (1-50) | NA |
| Min et al[82] | 2007-2011 | South Korea | 1527 | 63 (27-87) | 21 | 1577 | 16 (1-110) | NA |
| Kim et al[83] | 2008-2010 | South Korea | 440 | 64 | 29 | 450 | 19 | 48 |
| Yoon et al[84] | 2008-2010 | South Korea | 1319 | 63 | 34 | 1443 | 15.7 | 61.8 |
| Choi et al[85] | 2008-2012 | South Korea | 616 | NA | 26 | 616 | 12.9 | 27.7 |
| Chun et al[86] | 2009-2012 | South Korea | 35 | 54.15 | NA | 35 | 18 | 32.3 (7-84) |
| 1Chung et al[87] | 2010-2012 | South Korea | 76 | 64 | 36 | 76 | NA | 44 |
| Kim et al[88] | 2012-2013 | South Korea | 446 | NA | 34 | 446 | NA | NA |
| Bialek et al[89] | 2007-2010 | Poland | 37 | 63 (24-86) | 62 | 37 | 25 (10-60) | NA |
| Dinis-Ribeiro et al[90] | 2005-2008 | Portugal | 19 | 74 | NA | 19 | NA | 90 (40-300) |
| Lee et al[91] | 2004-2006 | Taiwan | 25 | 69 (36-82) | 44 | 25 | 19 | NA |
| 1Chang et al[92] | 2004-2007 | Taiwan | 70 | 66.5 (35-84) | 36 | 70 | 18.5 (8-40) | 92.4 (25-210) |
| Chu et al[93] | 2009-2011 | Taiwan | 16 | 51.9 (35-65) | 63 | 16 | 26.1 (20-42) | 52 (30-120) |
| González et al[94] | NA | Uruguay | 5 | NA | NA | 5 | 25.2 | 85 (30-180) |
1
Multicenter studies. NA: Not available.