Table 3.
Summary of pooled rates
| Outcome | Pooled rate (95% confidence interval)/no. of study | I2% heterogeneity |
|---|---|---|
| En-bloc resection | Overall: 92.5 (87.9–95.4)/12 | 0 |
| UC: 92.2 (86.2–95.8)/9 | 7 | |
| UC+CD: 93(84.1–97.1)/3 | 0 | |
| R0 resection | Overall: 81.5 (72.5–88)/11 | 43 |
| UC: 81 (70.9–88.2)/9 | 47 | |
| UC+CD: 83.5 (59.3–94.6)/2 | 61 | |
| Curative resection | Overall: 48.9 (32.1–65.9)/8 | 87 |
| UC: 80.4 (63.1–90.8)/7 | 71 | |
| UC+CD: 6.7 (2.2–18.7)/1 | 0 | |
| Bleeding | Overall: 7.7 (4.5–13)/12 | 10 |
| UC: 7.9 (3.9–15.4)/9 | 26 | |
| UC+CD: 7.5 (3.1–16.7)/3 | 0 | |
| Perforation | Overall: 5.3 (3.1–8.9)/12 | 0 |
| UC: 5.9 (3.3–10.3)/9 | 0 | |
| UC+CD: 3.5 (1–11.5)/3 | 0 | |
| Local recurrence | Overall: 3.9 (2–7.5)/12 | 0 |
| UC: 4.3 (2–9)/9 | 0 | |
| UC+CD: 2.9 (0.7–10.8)/3 | 0 | |
| Metachronous recurrence | Overall: 10 (5.2–18.2)/11 | 55 |
| UC: 10 (5.1–18.6)/9 | 48 | |
| UC+CD: 10.3 (0.8–61.3)/2 | 71 | |
| Additional surgery after ESD | Overall: 13 (8.5–19.3)/12 | 54 |
| UC: 12.8 (8.3–19.4)/9 | 81 | |
| UC+CD: 15.7 (2.9–54)/3 studies | 16 | |
| Procedure time (min) | Overall: 72.7 (53.2–92.2) | 92 |
| Publication bias | Absent (Egger’s 2-tailed p=0.06) |
UC, ulcerative colitis; CD, Crohn’s disease; ESD, endoscopic submucosal dissection.