Table 1.
Characteristics of studies included in the meta-analysis.
| Study | Year | Type of study | Study period | ER indication | ER | Group | Number | Age | Gender |
|---|---|---|---|---|---|---|---|---|---|
| Tsuyoshi Etoh | 2005 | Retrospective study | 1085–1999 | Absolute indication | EMR(49) | ER Gastrectomy |
49 44 |
84.2 82.2 |
27/17 31/18 |
| Kwi-Sook Choi | 2011 | Retrospective analysis with propensity-score matching | 1997–2002 | Intramucosal gastric cancer | EMR(172) | ER Gastrectomy |
172 379 |
59.3 (9.1) 58.4 (10.3) |
127/45 286/93 |
| Philip Chiu | 2012 | Retrospective cohort study | 1993–2010 | Mucosal or submucosal involvement | ESD(74) | ER Gastrectomy |
74 40 |
66 (14–88) 67 (33–84) |
49/25 23/17 |
| Dae Yong Kim | 2014 | Retrospective study | 2004–2007 | Absolute criteria(35) Expanded criteria(107) | ESD(142) | ER Gastrectomy |
142 71 |
62.0 (10.3) 56.7 (12.0) |
94/48 58/13 |
| Takeshi Yamashina | 2014 | Retrospective study | 1998–2012 | Mucosal or submucosal involvement | EMR(27) ESD(15) | ER Gastrectomy |
42 13 |
71.5 (54–89) 69 (39–76) |
40/2 12/1 |
| Ju Choi | 2014 | Retrospective cohort study | 2002–2007 | Absolute indication | EMR(86) ESD(175) | ER Gastrectomy |
261 114 |
62 (54–68) 62 (54–66) |
195/66 88/26 |
| Chan Park | 2014 | Retrospectively analyzed the clinical data | 2007–2012 | Expanded indication | ESD(307) | ER Gastrectomy |
307 200 |
74.5 (3.8) 74.1 (3.5) |
211/96 133/67 |
| Young Kim | 2014 | Prospectively collected clinical data | 2001–2009 | Expanded indication | EMR(18) ESD(147) | ER Gastrectomy |
165 292 |
62 (54–70) 60 (52–68) |
122/43 217/75 |
| Sara Najmeh | 2016 | Prospectively collected database | 2007–2014 | Expanded indication | ESD(30) | ER Gastrectomy |
30 37 |
74 (40–86) 75 (34–86) |
23/7 24/13 |