|  | Survival probability | Emergency surgery | ||
---|---|---|---|---|---|
Parameter | No. (cases) (%) | 5-year OS (%) | Log-rank p-value | (cases) (%) | p-value |
All | 329 | 64.1 | - | 22 (7) | - |
Sex | Â | Â | 0.5 | Â | 0.73 |
male | 191 (58) | 62.4 | Â | 12 (6) | Â |
female | 138 (42) | 66.5 | Â | 10 (7) | Â |
Age | Â | Â | 0.51 | Â | 0.35 |
< 60 years | 136 (41) | 66.7 | Â | 7 (5) | Â |
≥ 60 years | 193 (59) | 62.3 |  | 15 (8) |  |
Co-morbidity | Â | Â | 0.71 | Â | 0.97 |
Absent | 193 (59) | 65.5 | Â | 13 (7) | Â |
Present | 136 (41) | 61.7 | Â | 9 (7) | Â |
Serum CEA | Â | Â | < 0.01 | Â | 0.32 |
< 5 ng/ml | 144 (59) | 71.1 | Â | 8 (6) | Â |
≥ 5 ng/ml | 102 (41) | 54.8 |  | 9 (9) |  |
Tumor site | Â | Â | 0.32 | Â | 0.79 |
Rectum | 94 (29) | 56.8 | Â | 5 (5) | Â |
Colon | 223 (68) | 66.8 | Â | 16 (7) | Â |
T | Â | Â | 0.02 | Â | 0.18 |
T0-2 | 47 (14) | 75.9 | Â | 1 (2) | Â |
T3-4 | 282 (86) | 62 | Â | 22 (8) | Â |
N | Â | Â | < 0.01 | Â | 0.34 |
N0 | 171 (53) | 78.7 | Â | 9 (5) | Â |
N1-2 | 152 (47) | 49.4 | Â | 12 (8) | Â |
M | Â | Â | < 0.01 | Â | 0.02 |
M0 | 281 (85) | 72.1 | Â | 15 (5) | Â |
M1 | 48 (15) | 18.5 | Â | 7 (15) | Â |
Tumor differentiation | Â | Â | 0.16 | Â | 0.77 |
Well/Moderate | 279 (92) | 64.9 | Â | 18 (7) | Â |
Poor | 25 (8) | 58.6 | Â | 2 (8) | Â |
Lymphovascular invasion | Â | Â | < 0.01 | Â | 0.12 |
Absent | 276 (84) | 69 | Â | 16 (6) | Â |
Present | 51 (16) | 35.3 | Â | 6 (12) | Â |
Lymph node ratio | Â | Â | < 0.01 | Â | 0.53 |
< 0.35 | 273 (86) | 72.7 | Â | 17 (6) | Â |
≥ 0.35 | 46 (14) | 23.6 |  | 4 (9) |  |
Endoscopic obstruction | Â | Â | 0.73 | Â | < 0.01 |
Absent | 120 (37) | 67.2 | Â | 2(2) | Â |
Present | 209 (64) | 62.3 | Â | 20 (10) | Â |
Mode of operation | Â | Â | < 0.01 | Â | - |
Elective | 307 (93) | 66.4 | Â | - | Â |
Emergency | 22 (7) | 32.3 | Â | - | Â |