Clinical characteristics and survival of patients with normal-sized ovarian carcinoma syndrome: Retrospective analysis of a single institution 10-year experiment

Table 4 The Cox regression models for normal size ovarian cancer syndrome-specific survival prognostic factors in the univariate analysis

Factors	Overall survival			Progression-free survival
	Hazard ratio	95%CI	P value	Hazard ratio	95%CI	P value
Age ≥ 50 yr	1.314	0.594-2.906	0.500	0.736	0.290-1.871	0.520
CA125 ≥ 100 in U/mL	3.751	0.898-15.664	0.070	1.163	0.333-4.058	0.813
CA199 ≥ 35 in U/mL	2.546	1.156-5.608	0.020	1.778	0.483-6.543	0.387
Ascites ≥ 1000 in mL	1.954	0.987-3.870	0.055	1.248	0.567-2.747	0.582
Stage III vs IV	1.517	0.688-3.347	0.302	0.617	0.238-1.603	0.322
Residual tumor	2.348	0.969-5.691	0.059	1.059	0.431-2.599	0.901
Complete surgery	1.632	0.948-3. 061	0.512	0.842	0.267-2.134	0.534
Differentiation	0.047	0.000-42.817	0.512	0	0	0
Histological subtype	1.023	0.818-2.342	0.342	0.736	0.278-1.899	0.365
Operation method	0.541	0.268-1.091	0.086	1.114	0.512-2.424	0.785
Platinum-based CT	0.355	0.083-1.522	0.163	0.682	0.085-5.474	0.719
Chemotherapy numbers ≥ 6	0.307	0.138-0.684	0.004	0.384	0.117-1.261	0.115

CA: Carbohydrate antigen; CI: Confidence interval; CT: Computed tomography.