Table 6: Multivariate Cox proportional regression analyses of prognostic factors.

Factor Risk ratio95% CIP value

Overall survival rate
 Age (>60 years) 2.9512.467–3.531<0.00001
 FIGO stage (III-IV versus I-II)2.4892.169–2.855<0.00001
 Histology*1.5691.340–1.836<0.00001
 FIGO grade (3 versus 1-2)1.8141.590–2.069<0.00001
 Nuclear grade (3 versus 1-2)1.5581.286–1.888<0.00001
 DNA ploidy**1.4561.215–1.744<0.0001
 Myometrial infiltration***1.3221.164–1.501<0.0001
 P53 expression****0.9550.715–1.2760.755

Cancer-specific survival rate
 Age (>60 years)1.9251.509–2.456<0.00001
 FIGO stage (III-IV versus I-II)4.2053.542–4.993<0.00001
 Histology*1.7171.410–2.090<0.00001
 FIGO grade (3 versus 1-2)2.5242.099–3.035<0.00001
 Nuclear grade (3 versus 1-2)1.6351.279–2.090<0.0001
 DNA ploidy**1.5911.267–1.999<0.0001
 Myometrial infiltration***1.2921.069–1.5610.008
 P53 expression****1.0890.747–1.5870.657

*Nonendometrioid versus endometrioid. **Nondiploid versus diploid. ***>50% versus <50%. ****Positive (>30% staining) versus negative (<30% staining).