Table 1 Characteristics of the enrolled patients
|  | Total (n = 101) |
|---|---|
Sex (male/female), n | 82/19 |
Age, median (range), years | 69 (43–84) |
Location, n | Â |
 Anterior/posterior/right/left | 18/45/17/21 |
 Ce/Ut/Mt/Lt/Ae | 2/15/67/17/0 |
Morphology, n (%) | Â |
 0-IIa | 5 (5) |
 0-IIb | 37 (37) |
 0-IIc | 59 (58) |
Endoscopic lesion size, median (range), mm | 12 (3–20) |
Final histological diagnosis, n (%) | Â |
 Biopsy | 4 (4) |
 EMR/ESD | 35 (35)/62(61) |
Depth of invasion, n (%) | Â |
 pT1a-EP | 25 (26) |
 pT1a-LPM | 69 (68) |
 pT1a-MM | 2 (2) |
 pT1b-SM1 | 0 (0) |
 pT1b-SM2 | 1 (1) |
 Unknown | 4 (4) |