The Diagnostic Value of β-Human Chorionic Gonadotropin, Progesterone, and Ischemia-Modified Albumin and Their Combined Use in the Prediction of First Trimester Abortions

Table 3

The sensitivity value in determining abortion when free 𝛽-HCG (≤20 mIU/mL), progesterone (≤20.45 ng/mL), and ischemia-modified albumin (IMA) (>0.886) levels are used as single or combined parameters.

	Sensitivity; (%)	Specificity; (%)	PPV; (%)	NPV; (%)
Free 𝛽-HCG	87	80	86	81
Progesterone	96	75	95	79
IMA	74	91	77	95
Free 𝛽-HCG (≤20 mIU/mL) + progesterone (≤20.45 ng/mL)	88	80	81	87
Free 𝛽-HCG (≤20 mIU/mL) + IMA (>0.886)	75	99	98	80
Progesterone (≤20.45 ng/mL) + IMA (>0.886)	75	97	97	80
Free 𝛽-HCG (≤20 mIU/mL) + progesterone (≤20.45 ng/mL) + IMA (>0.886)	75	99	98	76

PPV: positive predictive value.
NPV: negative predictive value.