Table 2. Univariate and multivariate analyses of factors associated with overall survival.

Factors	OS
	Univariate, P	Multivariate
		HR	95% CI	P value
Age (years) (≤50 vs. >50)	0.278			NA
Stage (I-II vs. III-IV)	0.547			NA
CA125 in serum (U/mL) (<200 vs. ≥200)	0.032			NS
Differentiation (Low & Moderate vs. High)	0.625			NA
Lymph nodes metastasis (Negative vs. Positivele)	0.271			NA
Tumor size (diameter, cm) (>5 vs. ≤5)	0.014			NS
SNHG22 (high vs. low)	0.003	0.932	1.125–2.754	0.021