Table 2.
Tumor related factors for AL
| Tumor related factors | Leakage (−), n = 88 | Leakage (+), n = 13 | p value |
|---|---|---|---|
| Clinical | |||
| Tumor location, n = No. (%) | |||
| Rs | 22 (25.0) | 3 (23.0) | 0.031✝ |
| Ra | 58 (65.9) | 5 (38.5) | |
| Rb | 8 (9.1) | 5 (38.5) | |
| Tumor diameter (mm), median [range] | 35 [5~112] | 42 [10~100] | 0.36 |
| Anal verge (cm), median [range] | 13 [5~30] | 10 [5~20] | 0.040✝ |
| Circumferential tumor, n = No. (%) | |||
| Yes | 19 (21.8) | 4 (30.8) | 0.49 |
| No | 68 (78.2) | 9 (69.2) | |
| Stent placement, n = No. (%) | |||
| Yes | 5 (5.7) | 2 (15.4) | 0.22 |
| No | 83 (94.3) | 11 (84.6) | |
| cT, n = No. (%) | |||
| 1 | 18 (20.4) | 3 (23.1) | 0.94 |
| 2 | 18 (20.4) | 2 (15.4) | |
| 3 | 35 (39.8) | 6 (46.1) | |
| 4 | 17 (19.4) | 2 (15.4) | |
| cN, n = No. (%) | |||
| 0 | 60 (68.2) | 7 (54.0) | 0.49 |
| 1 | 18 (20.5) | 3 (23.0) | |
| 2 | 10 (11.3) | 3 (23.0) | |
| cStage, n = No. (%) | |||
| I | 36 (40.9) | 5 (38.5) | 0.83 |
| II | 21 (23.9) | 2 (15.4) | |
| III | 23 (26.1) | 4 (30.7) | |
| IV | 8 (9.1) | 2 (15.4) | |
| Pathological | |||
| pT, n = No. (%) | |||
| 1 | 24 (27.3) | 3 (23.1) | 0.74 |
| 2 | 19 (21.6) | 4 (30.8) | |
| 3 | 30 (34.1) | 5 (38.4) | |
| 4 | 15 (17.0) | 1 (7.7) | |
| pN, n = No. (%) | |||
| 0 | 57 (64.8) | 6 (46.1) | 0.098 |
| 1 | 20 (22.7) | 2 (15.4) | |
| 2 | 11 (12.5) | 5 (38.5) | |
| fStage, n = No. (%) | |||
| I | 37 (42.0) | 5 (41.7) | 0.15 |
| II | 17 (19.3) | 0 (0.0) | |
| III | 26 (29.6) | 5 (41.7) | |
| IV | 8 (9.1) | 2 (16.6) | |
AL anastomotic leakage
✝p < 0.05