Table 5.
Multivariate analysis of clinicopathological characteristics and biological factors by overall survival rate
| Characteristics | Hazards ratio | 95% CI | P-value |
|---|---|---|---|
| Total cases | |||
| Lymph node metastasis (no/yes) | 3.553 | 1.826-5.502 | < 0.001 |
| T stage (T1-2/T3-4) | 1.826 | 0.996-3.349 | 0.052 |
| AC | |||
| Lymph node metastasis (no/yes) | 5.212 | 2.222-12.226 | < 0.001 |
| CD44s (low/high) | 3.152 | 1.256-7.910 | 0.014 |
| Tumor differentiation (well/moderately, poorly) | 3.110 | 1.020-9.484 | 0.046 |
| SCC | |||
| T stage (T1-2/T3-4) | 2.537 | 1.202-5.355 | 0.015 |
| Lymph node metastasis (no/yes) | 2.001 | 0.954-4.197 | 0.066 |
| CD44s (low/high) | 0.311 | ||
CI, confidence interval; AC, adenocarcinoma; SCC, squamous cell carcinoma.