Table 3. Multivariate cox regression analyses of patients with stage IIIC epithelial ovarian cancer with node-positive.

Characteristic	CSS			OS
	HR	95%CI	P	HR	95%CI	P
Age (years)
≤50	1			1
> 50	1.331	1.709-2.104	< 0.001	1.425	1.301-1.560	< 0.001
Grade
Well	1			1
Moderately	2.049	1.619-2.595	< 0.001	1.933	1.552-2.407	< 0.001
Poorerly	2.258	1.806-2.823	< 0.001	2.103	1.709-2.588	< 0.001
Undifferentiated	2.325	1.836-2.944	< 0.001	2.150	1.725-2.679	< 0.001
Histology
Serous	1			1
Mucinous	1.264	1.001-1.597	0.049	1.334	1.074-1.656	0.009
Endometroid	0.879	0.766-1.009	0.068	0.910	0.799-1.036	0.153
Clear cell	1.370	1.121-1.676	0.002	1.424	1.183-1.716	< 0.001
Undifferentiated	0.698	0.463-1.053	0.087	0.713	0.484-1.051	0.088
Tumor location
One site	1			1
Paired site	1.722	1.298-2.284	< 0.001	1.612	1.225-2.121	0.001
Bilateral site	1.257	1.159-1.364	< 0.001	1.199	1.110-1.296	< 0.001
Number of RLNs (continuous variable)	0.998	0.993-1.003	0.339	0.996	0.991-1.001	0.081
Number of PLNs (continuous variable)	1.007	0.998-1.016	0.144	1.008	0.999-1.017	0.070
LNR (continuous variable)	1.896	1.709-2.104	< 0.001	1.679	1.454-1.939	< 0.001