Table 3.

Accuracy of interpreting LS-BMD Z-scores with ultrasound-SOS Z-scores

		%
	LS-BMD Z-scores	Sensitivity	Specificity	Positive Predictive Value	Negative Predictive Value
SOS-R	≥ 1	22	93	29	90
	>−1 to <1	53	60	50	63
	≤ −1	53	61	56	58
	≤ −2	29	91	40	86
SOS-L	≥ 1	25	89	20	91
	>−1 to <1	50	49	43	56
	≤ −1	35	62	45	52
	≤ −2	29	91	40	86

Lumbar spine (L2-4) bone mineral density (LS-BMD) age and gender matched standard deviations scores (Z) and ultrasound-speed of sound (SOS)- m/sec, of the right (R) and left (L) radii