Table 3.
Subgroup analysis of tumor size for comparison between endoscopic resection and laparoscopic resection
| Items | Tumor size ≤ 2.0 cm | 2.0 cm < Tumor size < 5 cm | ||||
| n | WMD/RR (95% CI) | I2 | n | WMD/RR (95% CI) | I2 | |
| Operation time (min) | 2 | –18.1 (–30.4, –5.7) | 0.0 | 9 | –24.6 (–28.1, –21.2) | 94.3 |
| Blood loss (mL) | 2 | –7.8 (–12.9, –2.7) | 0.0 | 5 | –16.4 (–19.9, –12.8) | 94.6 |
| LOHS (d) | 2 | –3.1 (–4.1, –2.1) | 78.8 | 10 | –1.4 (–1.7, –1.1) | 81.8 |
| Hospitalization cost | 1 | –882.5 (–1469.7, –295.3) | NA | 4 | –1558.8 (–4221.2, 1103.6) | 98.2 |
| Complications | 2 | 3.04 (0.86, 10.77) | 0.0 | 9 | 1.18 (0.78, 1.78) | 0.0 |
| Positive margins | 0 | NA | NA | 3 | 5.78 (1.31, 25.46) | 0.0 |
| Recurrence | 2 | 1.03 (0.20, 5.23) | 0.0 | 3 | 0.61 (0.18, 2.06) | 0.0 |
CI: Confidence interval; LOHS: length of hospital stay; NA: not available; RR: Relative risk; WMD: Weighted mean difference.