Prognostic Factors and a Predictive Nomogram of Cancer-Specific Survival of Epithelial Ovarian Cancer Patients with Pelvic Exenteration Treatment

Table 2

Univariate and stepwise multivariable Cox regression analysis results of CSS in the training cohort (n = 317).

Variables	Univariate analysis			Multivariate analysis
	HR	95% CI	value	HR	95% CI	value
Age
≤70 years	1			1
≥71 years	1.80	1.26–2.57	0.001	2.09	1.45–3.00	<0.001
Histologic type
Clear cell	1			1
Endometrioid	0.10	0.02–0.46	<0.001	0.08	0.02–0.37	0.001
Mucinous	1.48	0.40–5.48	0.555	9.27	2.32–37.05	0.002
Serous	0.83	0.42–1.63	0.038	0.32	0.16–0.66	0.002
FIGO stage
I/II	1			1
III/IV	25.42	3.56–181.53	0.001	46.88	5.83–376.71	<0.001
Lymph nodes examined
1∼12	1			1
13∼25	0.71	0.51–0.98	0.040	0.52	0.37–0.74	<0.001
≥26	0.63	0.46–0.88	0.006	0.40	0.27–0.59	<0.001
Lymph nodes positive
0∼8	1			1
≥9	1.85	1.35–2.54	<0.001	2.65	1.8–3.9	<0.001