Table 2. Demographics of patients after stratified random sampling into training and testing sets.

	Training (n = 135)	Testing (n = 44)	p-value
Age, years, median (SD) *	56 (8.1)	56 (8.3)	1.0
CA-125, units/ml, median (SD) *	126.5 (1193.5)	105.6 (577.8)	0.91
Pathology, n (%)†			1.0
Control	11 (8.1)	4 (9.1)
Benign lesions	34 (25.2)	11 (25.0)
Borderline tumors	16 (11.9)	5 (11.4)
Stage I/II invasive cancers	41 (30.4)	12 (27.3)
Stage III/IV invasive cancers	33 (24.4)	12 (27.3)

*student’s t-test.

^†chi-square test.