Table 3.
Univariate analysis of various prognostic factors correlated to retrieved lymph nodes n (%)
| Variable | 5-yr survival rate | Log rank χ2 value | P value | |
| Examined lymph nodes | ||||
| < 10 | 126 (29.5) | 57.1% | 4.256 | 0.039 |
| 10-15 | 152 (35.6) | 55.9% | ||
| > 15 | 149 (34.9) | 45.0% | ||
| pN | ||||
| 0 | 139 (32.6) | 80.6% | 97.014 | 0.000 |
| 1-2 | 78 (18.3) | 57.7% | ||
| 3-6 | 94 (22.0) | 44.7% | ||
| 7-15 | 86 (20.1) | 27.9% | ||
| > 15 | 30 (7.0) | 3.3% | ||
| MLR | ||||
| Nr = 0 | 139 (32.6) | 80.6% | 103.984 | 0.000 |
| 0 < Nr ≤ 0.2 | 79 (18.5) | 62.0% | ||
| 0.2 < Nr ≤ 0.4 | 58 (13.6) | 50.0% | ||
| 0.4 < Nr ≤ 0.7 | 104 (24.4) | 26.9% | ||
| 0.7 < Nr ≤ 1 | 47 (11.0) | 12.8% | ||
| LODDS | ||||
| Nr < -1 | 129 (30.2) | 80.6% | 96.214 | 0.000 |
| -1 ≤ Nr < -0.5 | 87 (20.4) | 63.2% | ||
| -0.5 ≤ Nr < 0 | 85 (19.9) | 43.5% | ||
| 0 ≤ Nr < 0.5 | 76 (17.8) | 27.6% | ||
| Nr ≥ 0.5 | 50 (11.7) | 14.0% | ||
MLR: Metastatic lymph node ratio; LODDS: Log odds of positive lymph nodes; pN: Positive lymph nodes.