Cox univariate and multivariate analyses of overall survival
| Variable | Overall survival | |
| HR (95% CI) | p Value | |
| Univariate analysis | ||
| Age | ||
| <50 vs ≧50 | 0.805 (0.292 to 2.217) | 0.675 |
| Stage | ||
| III/IV vs I/II | 2.567 (1.404 to 4.694) | 0.002 |
| Grade | ||
| G3 vs G2 vs G1 | 1.914 (0.981 to 3.733) | 0.057 |
| Depth of endometrial invasion | ||
| >1/2 vs ≦1/2 | 5.539 (1.918 to 15.998) | 0.002 |
| Lymph node invasion | ||
| Positive versus negative | 0.556 (0.261 to 1.183) | 0.127 |
| ER status | ||
| Positive versus negative | 1.939 (0.552 to 6.807) | 0.301 |
| PR status | ||
| Positive versus negative | 0.987 (0.315 to 3.035) | 0.970 |
| γ-Synuclein | ||
| Positive versus negative | 27.729 (3.692 to 208.257) | 0.003 |
| Multivariate analysis | ||
| Stage | ||
| III/IV vs I/II | 2.903 (1.010 to 8.340) | 0.048 |
| Depth of invasion | ||
| >1/2 vs ≦1/2 | 2.831 (1.033 to 7.757) | 0.031 |
| γ-Synuclein | ||
| Positive versus negative | ||
| >1/2 vs ≦1/2 | 12.331 (1.429 to 101.892) | 0.020 |
Multivariable analysis was performed using stepwise Cox proportional hazards regression with forward selection. Candidate exploratory variables included clinical age, grade, stage, depth of invasion, lymph node invasion, ER status, PR status and γ-synuclein.