Table 5. Sensitivity, specificity, likelihood ratios of endometrial (pre)malignancy at different risk factors

Characteristics	Sensitivity (%)	Specitivity (%)	LR+	LR-
Duration of bleeding ≥ 5 days	77.5	60.5	1.96	0.37
Number of liver birth <2	65	85.5	4.48	0.41
Endometrial thickness ≥ 5 mm	68.2	61.5	1.77	0.52
Abnormal intracavitary mass	67.5	81.5	3.65	0.40

LR+ = Likelihood ratio of positive test, LR- = Likelihood ratio of negative test