Table 2 Disease characteristics
Characteristics | Surgery only, N = 57 (%) | Radiotherapy plus surgery, N = 94 (%) | p |
|---|---|---|---|
Histology | 0.76 | ||
Adenocarcinoma | 48 (84) | 82 (87) | |
Mucinous carcinoma | 9 (16) | 11 (12) | |
Neuroendocrine carcinoma | 0 | 1 (1) | |
Grade | 0.87 | ||
1 | 4 (7) | 5 (5) | |
2 | 41 (72) | 74 (79) | |
3 | 10 (18) | 13 (14) | |
4 | 0 (0) | 2 (2) | |
Missinga | 2 (3) | 0 | |
pN | 0.62 | ||
1 | 33 (58) | 50 (53) | |
2 | 24 (42) | 44 (47) | |
Lateral margin R1 (< 1 mm) | 6 (11) | 6 (6) | 0.37 |
Tumor perforation | 5 (9) | 2 (2) | 0.10 |
Invasion | 0.04 | ||
Vascular/neural/lymphatic | 15 (26) | 41 (44) | |