Table 3. Comparison of Operating Characteristics of the Male Osteoporosis Risk Estimation Score in the National Health and Nutrition Examination Survey (NHANES) III Development Study⁴³ and the Current Validation Study

	NHANES III (n = 2995)	Current Study (n = 346)
Prevalence of osteoporosis (%)	4.8	4.3
Sensitivity	0.93 (0.88–0.97)	0.80 (0.52–0.96)
Specificity	0.59 (0.57–0.61)	0.70 (0.64–0.74)
Positive predictive value	0.10 (0.09–0.12)	0.11 (0.06–0.18)
Negative predictive value	0.99 (0.99–1.00)	0.99 (0.96–1.00)
Area under the curve	0.83 (0.81–0.86)	0.82 (0.71–0.92)

95% Confidence intervals are set in parentheses.