Table 2. Median disease-free interval for all patients by prognostic factors.

Variables	No. of events/No. of patients	Disease-free interval* (months)	p- value
All patients	25/25	25.1 (12.8–35.2)
Cancer stage
One	7/7	33.7 (5.8–52.4)	0.630
Two	3/3	23.0 (9.8–undefined)
Three	13/13	16.8 (10.7–33.6)
Tumor grade
One	5/5	63.2 (5.8–undefined)	0.009
Two	10/10	16.7 (8.0–38.0)
Three	10/10	22.4 (5.4–26.6)
Histopathology
Serous	11/11	26.6 (10.7–46.2)	0.705
Endometroid	7/7	12.8 (8.0–51.4)
Clear cell	5/5	25.1 (12.6–undefined)
Mucinous	2/2	5.8 (5.8–undefined)
Primary cytoreduction
Optimal	20/20	25.1 (9.8–46.2)	0.313
Suboptimal	5/5	22.4 (10.7–undefined)

**Median (95% CI).