Table 2 Basic characteristics and oncological characteristics of patients according to NIH classification.
Overall (532) | Very low (460) | Low (72) | |
|---|---|---|---|
Age (years), mean (SD) | 55.50 (9.55) | 55.43 (9.40) | 55.90 (10.53) |
Sex (%) | |||
Male | 179 (33.6) | 148 (32.2) | 31 (43.1) |
Female | 353 (66.4) | 312 (67.8) | 41 (56.9) |
Tumor site (%) | |||
Esophagus | 2 (0.4) | 1 (0.2) | 1 (1.4) |
Cardia/Gastric fundus | 313 (58.8) | 280 (60.9) | 33 (45.8) |
Gastric body/angle/antrum | 206 (38.7) | 172 (37.4) | 34 (47.2) |
duodenum | 7 (1.3) | 6 (1.3) | 1 (1.4) |
rectum | 4 (0.8) | 1 (0.2) | 3 (4.2) |
Tumor size (cm) (median [IQR]) | 1.00 [0.70, 1.50] | 1.00 [0.70, 1.40] | 2.50 [2.28, 3.00] |
Ulceration (%) | |||
No | 521 (97.9) | 458 (99.6) | 63 (87.5) |
Yes | 11 (2.1) | 2 (0.4) | 9 (12.5) |
Treatment (%) | |||
ESD | 497 (93.4) | 435 (94.6) | 62 (86.1) |
EFTR | 32 (6.0) | 24 (5.2) | 8 (11.1) |
STER | 3 (0.6) | 1 (0.2) | 2 (2.8) |
Infiltration site(%) | |||
Mucosa | 2(0.4) | 2(0.4) | 0(0.0) |
Submucosa | 51(9.6) | 36(7.8) | 15(20.8) |
Muscularis propria | 315(59.2) | 274(59.6) | 41(56.9) |
Serosa layer | 4(0.8) | 2(0.4) | 2(2.8) |
Unknown | 160(30.1) | 146(31.7) | 14(19.4) |
Postoperative adverse events (%) | |||
None | 481 (90.4) | 418 (90.9) | 63 (87.5) |
Fever | 44 (8.3) | 36 (7.8) | 8 (11.1) |
Bleeding | 6 (1.1) | 5 (1.1) | 1 (1.4) |
Perforation | 1 (0.2) | 1 (0.2) | 0 (0.0) |
Resection (%) | |||
En bloc | 522 (98.1) | 453 (98.5) | 69 (95.8) |
Piecemeal | 10 (1.9) | 7 (1.5) | 3 (4.2) |
Postoperative duration, mean (SD) | 5.30(1.47) | 5.20(1.34) | 5.96(2.04) |
Initial symptom (%) | |||
No sympotom | 205(38.5) | 175(38.0) | 30(41.7) |
Abdominal pain | 42(7.9) | 37(8.0) | 5(6.9) |
Abdominal distension | 124(23.3) | 110(23.9) | 14(19.4) |
Abdominal discomfort | 102(19.2) | 89(19.3) | 13(18.1) |
Bleeding | 5(0.9) | 3(0.7) | 2(2.8) |
Others | 54(10.2) | 46(10.0) | 8(11.1) |
