Table 2. Univariate analysis for 5-year overall and 5-year disease-free survival in 363 patients with colon cancer and only one lymph node metastasis.
| Characteristics | Patient Number | 5-year survival rate | P value | 5-year disease-free | P value |
|---|---|---|---|---|---|
| Age | 0.061 | 0.835 | |||
| < 75 | 287 | 65.6% | 52.2% | ||
| ≧ 75 | 76 | 77.6% | 61.4% | ||
| Gender | 0.201 | 0.042 | |||
| Male | 200 | 72.8% | 56.7% | ||
| Female | 163 | 78.5% | 68.2% | ||
| Performance Δ | 0.999 | 0.426 | |||
| 0~1 | 352 | 84.2% | 77.1% | ||
| 2 | 11 | 78.2% | 72.8% | ||
| Location Ψ | 0.518 | 0.503 | |||
| Right | 119 | 76.7% | 61.4% | ||
| Left | 153 | 72.5% | 60.8% | ||
| Sigmoid | 91 | 71.2% | 52.3% | ||
| Differentiation | 0.782 | 0.938 | |||
| Well | 7 | 85.6% | 72.5% | ||
| Moderate | 346 | 73.6% | 59.1% | ||
| Poor | 9 | 84.7% | 56.2% | ||
| Tumor depth | 0.314 | 0.026 | |||
| T1+2 | 76 | 79.1% | 72.4% | ||
| T3+4 | 287 | 72.6% | 54.7% | ||
| Invasion Ω | 0.573 | 0.218 | |||
| Present | 250 | 72.8% | 58.1% | ||
| Absent | 113 | 73.3% | 61.7% | ||
| CEA level | < 0.001 | < 0.001 | |||
| ≦5 | 251 | 81.2% | 69.2% | ||
| >5 | 112 | 54.6% | 38.9% | ||
| LN sampling number | 0.012 | 0.027 | |||
| ≧ 12 | 247 | 78.9% | 68.3% | ||
| < 12 | 116 | 64.6% | 47.5% | ||
| Treatment | 0.0692 | 0.150 | |||
| Chemotherapy(-) | 57 | 76.1% | 78.7% | ||
| Chemotherapy(+) | 306 | 73.2% | 57.8% |
Δ Performance status: according to the definition of ECOG-WHO
Ψ Location: Right: cecum to middle transverse colon, Left: middle transverse to descending colon.
Ω Invasion (present): if pathological report revealed one of venous, lympho-vessel or perineural invasion