Table 2.

Univariate and multivariate analyses of prognostic parameters in ovarian cancer patients by Cox regression analysis

Variable	Univariate analysis			Multivariate analysis
	Risk ratio	95 % CI	P-value	Risk ratio	95 % CI	P-value
Age (years)	1.673	0.647–2.309	0. 614
≥ 55 vs < 55
Histologic grade	1.615	0.855–2.742	0.556
Serous vs (Endometrioid + Mucinous + Clear cell + Others)
Tumor size (cm)	1.017	0.722–2.209	0.658
≤ 10 vs > 10
Tumor grade	3.161	1.719–5.839	0.016	3.015	1.623–6.286	< 0.001
G1 vs G2 + G3
Distant metastasis	3.957	1.892–7.413	<0.001	3.253	1.692–6.741	< 0.001
Yes vs No
FIGO stage	2.419	1.401–5.811	0.005	2.724	1.412–5.509	0.003
I + II vs III + IV
lncRNA CCAT2	3.227	1.638–6.279	0.001	2.938	1.526–5.873	< 0.001
High vs Low