Egyptian Rheumatology and Rehabilitation

Table 6 Agreement (sensitivity, specificity) for PINP and B-ALP to discriminate osteoporosis patients (n = 60) from osteopenia patients (n = 48)

From: Could procollagen type I N-terminal propeptide (PINP) and bone alkaline phosphatase (B-ALP) be valid alternative diagnostic markers to dual X-ray absorptiometry (DEXA) in elderly females with osteoporosis? An Egyptian radiological and laboratory monocentric study

	AUC	p	95% CI	Cut off	Sensitivity	Specificity	PPV	NPV
PINP (pg/ml)	0.721	< 0.001^*	0.625–0.818	≤ 37.2	71.67	62.50	70.5	63.8
B-ALP (ng/ml)	0.584	0.137	0.475–0.692	> 51.2	58.33	56.25	62.5	51.9

AUC area under a curve, p value probability value, CI confidence intervals, NPV negative predictive value, PPV positive predictive value
^*Statistically significant at p ≤ 0.05

Back to article page