Table 3.

The accuracy of IHDS for detecting symptomatic HAND.

Threshold	Sensitivity (95% CI)	Specificity (95% CI)
12	0.918 (0.409–0.995)	0.202 (0.041–0.599)
11.5	0.874 (0.444–0.984)	0.315 (0.101–0.654)
11	0.810 (0.459–0.955)	0.456 (0.215–0.719)
10.5	0.724 (0.425–0.903)	0.604 (0.368–0.800)
10	0.618 (0.308–0.855)	0.736 (0.503–0.884)
9.5	0.500 (0.158–0.842)	0.835 (0.595–0.946)
9	0.381 (0.062–0.851)	0.902 (0.657–0.978)
8.5	0.275 (0.021–0.870)	0.944 (0.704–0.992)
8	0.190 (0.007–0.889)	0.968 (0.742–0.997)
7.5	0.126 (0.002–0.908)	0.982 (0.774–0.999)
7	0.082 (0.001–0.925)	0.990 (0.801–1.000)
6.5	0.052 (0.000–0.939)	0.995 (0.826–1.000)
6	0.033 (0.000–0.951)	0.997 (0.847–1.000)