Table 6.
Post-operative histology outcomes
| Postoperative Outcome | Variable | Total N=402 | Lateral to medial (LM) N=122 | Medial to lateral (ML) N=280 | P |
|---|---|---|---|---|---|
| Histology, n (%) | Adenocarcinoma | 379 (94.2) | 114 (93.4) | 265 (94.6) | 0.480 |
| Mucinous adenocarcinoma | 10 (2.5) | 3 (2.5) | 7 (2.5) | ||
| Neuroendocrine | 3 (0.7) | 0 | 3 (1.1) | ||
| No residual malignancy | 7 (1.7) | 3 (2.5) | 4 (1.4) | ||
| Signet ring cell carcinoma | 1 (0.2) | 1 (0.8) | 0 | ||
| Tubulovillous adenoma | 2 (0.4) | 1 (0.8) | 1 (0.4) | ||
| Grade of differentiation, n (%) | Well | 45 (11.2) | 14 (11.5) | 31 (11.1) | 0.826 |
| Moderate | 303 (75.4) | 94 (77.0) | 209 (74.6) | ||
| Poor | 45 (11.2) | 11 (9.0) | 34 (12.1) | ||
| Not graded | 9 (2.2) | 3 (2.5) | 6 (2.1) | ||
| Duke’s stage, n (%) | A | 65 (16.2) | 19 (15.6) | 46 (16.4) | 0.200 |
| B | 177 (44.0) | 56 (45.9) | 121 (43.2) | ||
| C1 | 130 (32.3) | 33 (27.0) | 97 (34.6) | ||
| C2 | 6 (1.5) | 3 (2.5) | 3 (1.1) | ||
| D | 12 (3.0) | 7 (5.7) | 5 (1.8) | ||
| No grade | 12 (3.0) | 4 (3.3) | 8 (2.9) | ||
| TNM, n (%) | T0 | 11 (2.7) | 4 (3.3) | 7 (2.5) | 0.566 |
| T1 | 42 (10.4) | 9 (7.4) | 33 (11.8) | ||
| T2 | 76 (18.9) | 27 (22.1) | 49 (17.5) | ||
| T3 | 208 (51.7) | 61 (50.0) | 147 (52.5) | ||
| T4 | 65 (16.2) | 21 (17.2) | 44 (15.7) | ||
| N0 | 263 (65.4) | 87 (71.3) | 176 (62.9) | 0.567 | |
| N1 | 95 (23.6) | 27 (22.1) | 68 (24.3) | ||
| N2 | 44 (10.9) | 11 (9.0) | 33 (11.8) | ||
| M0 | 380 (94.5) | 113 (92.6) | 267 (95.4) | 0.259 | |
| M1 | 22 (5.5) | 9 (7.4) | 13 (4.6) | ||
| R, n (%) | R0 | 393 (97.8) | 118 (96.7) | 275 (98.2) | 0.352 |
| R1 | 9 (2.2) | 4 (3.3) | 5 (1.8) |