Table 5 Comparison of tumor size between sessile serrated adenomas/polyps without and with dysplasia or adenocarcinoma groups according to removal method and age groups.
Removal methods | Tumor size of SSA/Ps (mm) [mean ± SD] (range) | ||
|---|---|---|---|
Total (n = 532) | |||
Polypectomy (n = 95) | 6.2 ± 5.9 (2.0–30.0) | ||
EMR (n = 412) | 10.8 ± 6.0 (2.0–40.0) | ||
EPMR (n = 5) | 27.0 ± 8.3 (15.0–35.0) | ||
ESD (n = 20) | 27.5 ± 12.6 (6.0–50.0) | ||
Variables | SSA/POs (n = 370) | SSA/PDAs (n = 162) | p-value |
Tumor size (n) (%) | |||
<10 mm (n = 271) | 194 (52.4) | 77 (47.5) | 0.268 |
10–20 mm (n = 190) | 124 (33.5) | 66 (40.7) | 0.271 |
≥20 mm (n = 71) | 52 (14.1) | 19 (11.7) | 0.700 |
Age [mean ± SD] (n) | |||
Age <58 (n = 263) | |||
Polypectomy (n = 46) | 4.5 ± 2.7 (39) | 7.0 ± 4.5 (7) | 0.210 |
EMR (n = 209) | 10.9 ± 5.8 (142) | 10.1 ± 5.5 (67) | 0.337 |
EPMR (n = 2) | 27.0 ± 7.0 (2) | 0(0) | NA |
ESD (n = 6) | 32.5 ± 8.6 (4) | 46.0 ± 5.6 (2) | 0.100 |
Age ≥58 (n = 269) | |||
Polypectomy (n = 49) | 6.8 ± 6.6 (43) | 11.6 ± 8.1 (6) | 0.213 |
EMR (n = 203) | 11.2 ± 6.4 (129) | 10.2 ± 5.7 (74) | 0.257 |
EPMR (n = 3) | 33.0 ± 2.8 (2) | 15.0 (1) | 0.121 |
ESD (n = 14) | 23.5 ± 9.1 (9) | 23.2 ± 16.5 (5) | 0.966 |
