Table 4. Performance, Threshold Values, and Number of Women Who Would Be Sent for Screening with Thresholds That Give Sensitivities Near 90% for Each Tool

	Sensitivity (95% CI)	Specificity (95% CI)	PPV (95% CI)	NPV 95% CI)	AUC	Women Who Would Be Sent for Screening, n (%)
ORAI ≥5	94 (82–98)	19 (15–25)	19 (15–25)	94 (82–98)	0.57	240 (83)
OST <6	90 (77–96)	25 (20–32)	20 (15–26)	92 (82–97)	0.58	224 (77)
SCORE ≥4	88 (75–95)	28 (22–34)	20 (15–26)	92 (82–97)	0.58	217 (75)
FRAX ≥4.7%	90 (77–96)	17 (13–23)	18 (13–24)	89 (76–96)	0.54	243 (84)
FRAX ≥6.8%	66 (51–78)	51 (45–58)	22 (16–30)	88 (81–93)	0.59	149 (51)

AUC, area under the receiver operating characteristic curve; CI, confidence interval; FRAX, Fracture Risk Assessment Tool; NPV, negative predictive value; ORAI, Osteoporosis Risk Assessment Instrument; OST, Osteoporosis Self-Assessment Tool; PPV, positive predictive value; SCORE, Simple Calculated Osteoporosis Risk Estimation.