Table 1 Baseline characteristics of patients and tumors
EMR-c | ESD | p-value | |
|---|---|---|---|
Patient characteristics | |||
Patient number, n (%) | 76 | 46 | |
Age, years | |||
Mean ± SD | 52.39 ± 11.958 | 51.37 ± 10.186 | 0.629 |
Gender, n (%) | |||
Male | 47 (61.84) | 24 (52.17) | |
Female | 29 (38.16) | 22 (47.83) | 0.345 |
With single/multiple lesions, n (%) | |||
Single | 72 (94.74) | 44 (95.65) | |
Multiple | 4 (5.26) | 2 (4.35) | 1.000 |
Lesion characteristics | |||
Lesion number, n (%) | 80 | 48 | |
Lesion size, mm | |||
Mean ± SD | 6.988 ± 2.357 | 6.438 ± 1.988 | 0.179 |
Lesion size group, n (%) | |||
< 8 mm | 46 (57.50) | 29 (60.62) | |
≥ 8 mm | 34 (42.50) | 19 (39.58) | 0.853 |
Location group, n (%) | |||
Upper rectum | 4 (5.00) | 1 (2.08) | |
Middle rectum | 50 (62.5) | 24 (50.00) | |
Lower rectum | 26 (32.5) | 23 (47.82) | 0.223 |
Histopathological grade, n (%) | |||
G 1 | 62 (93.94) | 42 (89.36) | |
G 2 | 4 (6.06) | 5 (10.64) | 0.486 |