Table 2.
Comparison of intraoperative outcomes between the two groups before and after PSM.
| Variables | Overall (n = 218) | Before PSM | After PSM | ||||
|---|---|---|---|---|---|---|---|
| MTCC group (n = 32) | CCC group (n = 186) | P-value | MTCC group (n = 32) | CCC group (n = 64) | P-value | ||
| Defect diameter, cm, median (IQR) | 2.5 (2.0, 3.5) | 2.8 (2.0, 3.5) | 2.5 (1.5, 3.5) | 0.329 | 2.8 (2.0, 3.5) | 2.3 (1.5, 3.5) | 0.228 |
| Total procedure time, minutes, median (IQR) | 52.0 (42.0, 64.0) | 47.0 (40.0, 60.0) | 52.0 (43.0, 65.0) | 0.015 | 47.0 (40.0, 60.0) | 53.0 (44.0, 65.0) | 0.027* |
| Endoscopic resection time, minutes, median (IQR) | 36.0 (26.0, 45.0) | 40.0 (30.0, 53.0) | 36.0 (24.0, 45.0) | 0.027 | 40.0 (30.0, 53.0) | 37.0 (26.0, 46.0) | 0.063 |
| Defect closure time, minutes, median (IQR) | 17.0 (10.0, 25.0) | 7.0 (6.0, 9.0) | 19.0 (13.0, 25.0) | < 0.001 | 7.0 (6.0, 9.0) | 17.0 (15.0, 25.0) | < 0.001* |
| Number of titanium clips, median (IQR) | 12.0 (10.0, 14.0) | 8.0 (7.0, 9.0) | 12.0 (11.0, 14.0) | < 0.001 | 8.0 (7.0, 9.0) | 12.0 (11.0, 14.0) | < 0.001* |
| Technical closure success rate, n (%) | 216 (99.1%) | 32 (100.0%) | 184 (98.9%) | > 0.999 | 32 (100.0%) | 63 (98.4%) | > 0.999 |
MTCC: mucosal traction-assisted clip closure; CCC: conventional clip closure; IQR: interquartile range; PSM: propensity score matching.