Table 4. Kaplan-Meier univariate analysis of patients with SRC.
| Variable | n | 5-Year survival rate (%) | P value |
|---|---|---|---|
| Sex | 0.319 | ||
| Male | 81 | 34.6 | |
| Female | 57 | 38.6 | |
| Age (yr) | 0.012 | ||
| <60 | 86 | 43.0 | |
| ≥60 | 52 | 25.0 | |
| Tumor size (cm) | <0.001 | ||
| <5 | 84 | 48.8 | |
| ≥5 | 54 | 16.7 | |
| Tumor location | <0.001 | ||
| Upper third | 22 | 18.2 | |
| Middle third | 34 | 29.4 | |
| Lower third | 68 | 51.5 | |
| Two-third or more | 14 | 7.1 | |
| Venous tumor emboli | <0.001 | ||
| Yes | 53 | 15.1 | |
| No | 85 | 49.4 | |
| Nervous invasion | <0.001 | ||
| Yes | 56 | 21.4 | |
| No | 82 | 46.3 | |
| Serosa invasion | <0.001 | ||
| Yes | 69 | 17.4 | |
| No | 69 | 55.1 | |
| Lymph node metastasis | <0.001 | ||
| Yes | 96 | 16.7 | |
| No | 42 | 81.0 | |
| TNM stage | <0.001 | ||
| Stage I | 35 | 91.4 | |
| Stage II | 13 | 53.8 | |
| Stage III | 90 | 12.2 | |
| P21 expression | 0.490 | ||
| Positive | 66 | 36.4 | |
| Negative | 72 | 36.1 | |
| P53 expression | 0.423 | ||
| Positive | 86 | 34.9 | |
| Negative | 52 | 38.5 | |
| c-myc expression | 0.202 | ||
| Positive | 79 | 31.6 | |
| Negative | 59 | 42.4 | |
| EGFR expression | 0.012 | ||
| Positive | 49 | 26.5 | |
| Negative | 89 | 41.6 |