Table 4.

Multivariate Survival Analysis (Cox Regression Model)

	Beta	Standard error	Wald	df	Relative risk	95% CI of Relative risk	P value
COX-2 Expression							0.004
Negative					1.00
Positive	1.009	0.352	8.197	1	2.74	1.38–5.47	0.004
Histological type			9.920	2			0.007
Serous					1.00
Nonserous	−0.515	0.482	1.142	1	0.60	0.23–1.54	0.285
Undifferentiated	1.356	0.474	8.198	1	3.88	1.53–9.82	0.004
FIGO stage			9.380	3			0.025
I					1.00
II	−0.142	0.677	0.044	1	0.87	0.23–3.27	0.834
III	−0.421	0.563	0.559	1	0.66	0.22–1.99	0.455
IV	1.738	0.794	4.789	1	5.68	1.20–26.95	0.029
Grade (Silverberg)			10.347	2			0.006
G1					1.00
G2	1.818	0.567	10.291	1	6.16	2.03–18.70	0.001
G3	1.560	0.600	6.748	1	4.76	1.47–15.43	0.009
Age							0.020
< 60 years					1.00
> 60 years	0.755	0.326	5.371	1	2.13	1.12–4.03	0.020