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

Table 5 The Cox regression models for normal size ovarian cancer syndrome-specific survival in the multivariate analysis

Factors	Overall survival
	HR	95%CI	P value
CA125 ≥ 100 in U/mL	0.785	0.093-6.589	0.823
CA199 ≥ 35 in U/mL	3.004	1.133-7.960	0.027
Ascites ≥ 1000 in mL	1.935	0.814-4.599	0.135
Residual tumor	1.417	0.492-4.078	0.518
Chemotherapy numbers ≥ 6	0.313	0.127-0.770	0.012
Histological subtype	1.124	0.744-3.451	0.235
Stage	0.769	0.642-3.477	0.176
Operation method	1.213	0.984-3.461	0.115

CA: Carbohydrate antigen; CI: Confidence interval.