Table 2. Univariate and multivariate analyses on the disease-free survival of 102 cases of ovarian cancer.

	Univariate analysis			Multivariate analysis
	HR	P > |z|	95% CI	HR	P > |z|	95% CI
SPAG5 expression
High versus Low	5.06	0.001*	2.705–9.458	3.57	0.001*	1.782–7.158
Age (years)
≥60 versus <60	1.26	0.417	0.719–2.216
Tumour size (cm)
>5 versus ≤5	2.23	0.064	0.955–5.191
Histological type
Serous versus mucinous versus Endometroid versus clear cell	1.22	0.250	0.870–1.704
Pathological grade
Grade 1 and 2 versus Grade 3	0.63	0.031*	0.417–0.958	0.98	0.936	0.645–1.497
Lymph node metastasis
Positive versus negative	3.77	0.001*	2.225–6.379	1.04	0.909	0.550–1.958
Distant metastasis
Positive versus negative	4.38	0.001*	2.507–7.666	4.42	0.070	0.886–22.099
TNM stage
Stage I versus Stage II versus Stage III versus Stage Stage IV	0.26	0.001*	0.167–0.392	0.11	0.002*	0.025–0.447

^*P < 0.05