Recurrence-Associated Multi-RNA Signature to Predict Disease-Free Survival for Ovarian Cancer Patients

Table 1

The clinical features of ovarian cancer patients.

Clinical characteristics	Training set (N = 161)	Validation set (N = 161)	Entire set (N = 322)
Age (years, mean ± SD)	58.32 ± 11.38	59.17 ± 11.56	58.75 ± 11.46
Neoplasm histologic grade (G2/G3/-)	20/136/5	22/136/3	42/272/8
Pathologic stage (II/III/IV/-)	11/125/24/1	13/125/22/1	24/250/46/2
Lymphovascular invasion (yes/no/-)	41/24/96	43/20/98	84/44/194
Vascular invasion (yes/no/-)	26/21/114	30/16/115	56/37/229
Tumor recurrence (yes/no)	121/40	121/40	242/80
Disease-free survival time (months, mean ± SD)	21.67 ± 23.76	20.42 ± 19.89	21.04 ± 21.89

SD: standard deviation.