Table 2.

Evaluation of IHDS at different thresholds for detecting HAND.

Threshold	Sensitivity (95% CI)	Specificity (95% CI)
12	0.916 (0.874–0.945)	0.235 (0.154–0.342)
11.5	0.872 (0.813–0.914)	0.332 (0.227–0.456)
11	0.808 (0.730–0.868)	0.444 (0.322–0.574)
10.5	0.724 (0.627–0.803)	0.563 (0.433–0.684)
10	0.619 (0.511–0.717)	0.675 (0.552–0.777)
9.5	0.502 (0.393–0.611)	0.770 (0.665–0.849)
9	0.385 (0. 287–0.494)	0.843 (0.761–0.901)
8.5	0.280 (0.200–0.378)	0.897 (0.837–0.936)
8	0.195 (0.134–0.274)	0.933 (0.892–0.959)
7.5	0.130 (0.087–0.190)	0.957 (0.930–0.974)
7	0.085 (0.056–0.128)	0.973 (0.955–0.984)
6.5	0.055 (0.035–0.084)	0.983 (0.971–0.990)
6	0.035 (0.022–0.054)	0.989 (0.982–0.994)