Table 5 Subgroup analysis of treatment outcomes based on lesion size after propensity score matching.
Lesion size < 5 mm (n = 74) | Lesion size ≥ 5 mm (n = 144) | |||||
|---|---|---|---|---|---|---|
No. of lesions | m-EMR (n = 36) | ESD (n = 38) | P value | m-EMR (n = 73) | ESD (n = 71) | P value |
Treatment outcomes | ||||||
Procedure time, median (range), min | 6 (3–14) | 21.5 (9–73) | < 0.001* | 6 (2–17) | 27 (7–120) | < 0.001* |
En bloc resection | 36 (100%) | 38 (100%) | 1.00 | 73 (100%) | 71 (100%) | 1.00 |
Resection margin | ||||||
Negative | 35 (97.2%) | 33 (86.8%) | 0.189 | 63 (86.3%) | 57 (80.3%) | 0.529 |
Indeterminate | 1 (2.8%) | 2 (5.3%) | 4 (5.5%) | 4 (5.6%) | ||
Positive | 0 (0%) | 3 (7.9%) | 6 (8.2%) | 10 (14.1%) | ||
Adverse events | ||||||
Postprocedure bleeding | 3 (8.3%) | 3 (7.9%) | 1.00 | 3 (4.1%) | 0 (0%) | 0.245 |
Perforation | 0 (0%) | 0 (0%) | 1.00 | 1 (1.4%) | 1 (1.4%) | 1.00 |
