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.