Table 1.
Baseline characteristics of the patient via resection modality
| Variables | Total (n = 736) | Endoscopic Resection (n = 608) |
Local Surgery (n = 106) |
Radical Surgery (n = 22) |
P |
|---|---|---|---|---|---|
| Basic Information | |||||
| Sex, n (%) | 0.612 | ||||
| Male | 377 (51.22) | 314 (83.29) | 54 (14.32) | 9 (2.39) | |
| Female | 359 (48.78) | 294 (81.89) | 52 (14.48) | 13 (3.62) | |
| Age, n (%) | 0.112 | ||||
| < 45 | 257 (34.92) | 222 (86.38) | 32 (12.45) | 3 (1.17) | |
| 45–59 | 256 (34.78) | 209 (81.64) | 39 (15.23) | 8 (3.12) | |
| ≥ 60 | 223 (30.30) | 177 (79.37) | 35 (15.70) | 11 (4.93) | |
| Reason for presentation, n (%) | 0.624 | ||||
| Incidental | 409 (55.57) | 340 (83.13) | 59 (14.43) | 10 (2.44) | |
| Symptomatic | 327 (44.43) | 268 (81.96) | 47 (14.37) | 12 (3.67) | |
| EUS evaluation, n (%) | 0.088 | ||||
| No | 448 (60.87) | 360 (80.36) | 71 (15.85) | 17 (3.79) | |
| Yes | 288 (39.13) | 248 (86.11) | 35 (12.15) | 5 (1.74) | |
| Pathological Features | |||||
| Size, n (%) | < 0.001* | ||||
| < 1 cm | 560 (76.09) | 501 (89.46) a | 58 (10.36) b | 1 (0.18) c | |
| 1–2 cm | 162 (22.01) | 105 (64.81) a | 43 (26.54) b | 14 (8.64) c | |
| ≥ 2 cm | 14 (1.90) | 2 (14.29) a | 5 (35.71) b | 7 (50.00) c | |
| Grade, n (%) | < 0.001* | ||||
| G1 | 699 (94.97) | 592 (84.69) a | 98 (14.02) b | 9 (1.29) c | |
| G2 | 35 (4.76) | 16 (45.71) a | 8 (22.86) b | 11 (31.43) c | |
| G3 | 2 (0.27) | 0 (0.00) a | 0 (0.00) a | 2 (100.00) b | |
| PNI/LVI, n (%) | < 0.001* | ||||
| Negative | 690 (93.75) | 582 (84.35) a | 100 (14.49) a | 8 (1.16) b | |
| Positive | 46 (6.25) | 26 (56.52) a | 6 (13.04) a | 14 (30.43) b | |
| T stage, n (%) | < 0.001* | ||||
| T1 | 712 (96.74) | 606 (85.11) a | 103 (14.47) b | 3 (0.42) c | |
| T2 | 15 (2.04) | 2 (13.33) a | 3 (20.00) b | 10 (66.67) c | |
| T3 + T4 | 9 (1.22) | 0 (0.00) a | 0 (0.00) a | 9 (100.00) b | |
| N stage, n (%) | < 0.001* | ||||
| N0 | 716 (97.28) | 607 (84.78) a | 104 (14.53) b | 5 (0.70) c | |
| N1 | 20 (2.72) | 1 (5.00) a | 2 (10.00) b | 17 (85.00) c | |
| M stage, n (%) | |||||
| M0 | 728 (98.91) | 608 (83.52) a | 104 (14.29) b | 16 (2.20) c | < 0.001* |
| M1 | 8 (1.09) | 0 (0.00) a | 2 (25.00) b | 6 (75.00) c |
EUS Endoscopic Ultrasonography, PNI/LVI perineural or lymphovascular invasion. Different superscript letters (a, b, c) indicate statistically significant differences between columns by pairwise z-test with Bonferroni correction (adjusted P < 0.05). *Statistically significant difference (P < 0.05)