Table 2. Multivariate analysis for progression free survival of the patients.

	n (%)	HR	95% CI	P value
Age, yrs
<70	75 (79.8)	1
≥70	19 (20.2)	0.531	0.228–1.133	0.104
FIGO Stage
I-II	45 (47.9)	1
III-IV	49 (52.1)	12.92	4.080–57.080	<0.001
Histology
Non-serous	60 (63.8)	1
Serous	34 (36.2)	0.926	0.461–1.893	0.831
Primary surgical outcome
Optimal	60 (63.8)	1
Suboptimal	34 (36.2)	2.262	1.301–5.513	0.007
IL-6 stain
Low	62 (66.0)	1
High	32 (34.0)	0.635	0.303–1.283	0.209
IL-6R stain
Low	72 (76.6)	1
High	22 (23.4)	2.388	1.171–4.895	0.017

HR, hazard ratio;

95% CI, 95% confidence interval.