Table 2.

Variable analysis of overall survival.

	Kaplan–Meier		Cox-regression
	test		Analysis
variable	Log-rank p p value	p value	HR	95%CI
Association with endometriosis	0.011*	0.033*	0.423	0.192–0.933
Serum CA125 > 600 U/mL	0.021*	0.346	0.702	0.337–1.464
Ascites	0.009*	0.045*	2.274	1.020–5.069
Stages III–IV	0.000*	0.001*	3.743	1.683–8.327
Chemo-resistance	0.000*	0.000*	4.300	1.932–9.570
Residual tumor > 1 cm	0.000*	0.004*	3.423	1.470–7.970
Histological type of CCC	0.610	–	–	–

*p < 0.05. HR, hazard ratio; CI, confidence interval.