Table 1.

Group averages and impairment rates for three screening measures at standard cutoff scores

Measure	Participants (n)	Mean score	SD	Impairment rate [(%) n]*
MMSE	21	27.8	2.4	(14.3%) 3
HDS	21	9.7	3.1	(61.9%) 13
NEUROPSI	21	86.4	9.9	(71.4%) 15
Global T-score	20	38.1	6.3	N/A

Note:

^*Percent classified as neurocognitively impaired based on standard cutoff scores.

Abbreviations: HDS, HIV Dementia Scale; MMSE, Mini-Mental State Examination; N/A, not applicable; SD, standard deviation.