Table 3. Sensitivity, specificity and likelihood ratios for predicting malignancy of CA 125 serum levels, ultrasound score, menopausal status and the risk-of-malignancy index.

Variables	Sensitivity (%)	95% CI	Sensitivity (%)	95% CI	Likelihood Ratio (+)	Likelihood Ratio (-)
CA 125 (u/ml) *
10	94	(84 - 98)	26	(17 - 37)	1.27	0.23
35	78	(65 - 86)	75	(64 - 83)	3.12	0.29
50	61	(48 - 73)	88	(78 - 94)	5.08	0.44
65	52	(39 - 64)	91	(82 - 96)	5.77	0.53
150	27	(17 - 39)	97	(89 - 99)	9.00	0.75
Ultrasound Score *
1	98	(90 - 99)	24	(16 - 35)	1.29	0.08
2	82	(70 - 90)	67	(56 - 76)	2.48	0.27
3	75	(62 - 84)	71	(60 - 80)	2.59	0.35
4	75	(62 - 84)	73	(62 - 81)	2.78	0.34
8	43	(31 - 56)	89	(80 - 94)	3.91	0.64
Postmenopausal
Status	73	(60-83)	69	(58-78)	2.35	0.39
Risk of malignancy index *
30	96		56		2.18	0.07
100	84		77		3.65	0.21
150	79		79		3.76	0.27
200	73		86		5.21	0.31
500	63		97		21.00	0.38

^* Cut-off point;

CI: Confidence Interval.