Table 1.
Baseline characteristics of patients who underwent CWL-ESD or SLC-ESD for superficial gastric neoplasms before propensity score matching
| CWL-ESD n = 42 |
SLC-ESD n = 98 |
P | |
|---|---|---|---|
| Age, years, | |||
| Median (IQR) | 75 (69–80) | 74 (68–81) | 0.731 |
| Sex, male/female | 30 (71.4)/12 (28.6) | 70 (71.4)/28 (28.6) | 1.000 |
| Lesion size, mm | |||
| Median (IQR) | 12 (8–20) | 14 (9–21) | 0.341 |
| Range | 1–70 | 2–57 | |
| Lesion location | 0.970 | ||
| Upper | 8 (19.0) | 17 (17.3) | |
| Middle | 21 (50.0) | 49 (50.0) | |
| Lower | 13 (31.0) | 32 (32.7) | |
| Lesion position | 0.653 | ||
| Greater curvature | 8 (19.0) | 25 (25.5) | |
| Lesser curvature | 15 (35.7) | 39 (39.8) | |
| Anterior wall | 8 (19.0) | 16 (16.3) | |
| Posterior wall | 11 (26.2) | 18 (18.4) | |
| Morphology | 0.075 | ||
| Depressed (0–IIc, 0–III) | 17 (40.5) | 57 (58.2) | |
| Flat (0–IIb) | 2 (4.8) | 1 (1.0) | |
| Protruded (0–I, 0–IIa) | 23 (54.8) | 40 (40.8) | |
| Histology | 0.367 | ||
| Adenoma | 8 (19.0) | 14 (14.3) | |
| Differentiated adenocarcinoma | 31 (73.8) | 81 (82.7) | |
| Undifferentiated adenocarcinoma | 3 (7.1) | 3 (3.1) |
Values are n (%) unless otherwise indicated
CWL-ESD clip with line-assisted endoscopic submucosal dissection, IQR interquartile range, SLC-ESD spring and loop with clip-assisted endoscopic submucosal dissection