Table 2.

Mean, SD, Range for Baseline Accuracy Scores of MicroCog Subtests

	HIV	ALC	HIV + ALC	NC
Working memory
Alphabet tracking (max = 45)	44.1	43.4	42.8	44.8
	(2.1)	(5.0)	(6.9)	(0.5)
	33 to 45	15 to 45	1 to 45	43 to 45
Digits forward (max = 71)	28.3	26.6	24.4	28.1
	(9.1)	(1.4)	(7.7)	(9.7)
	10 to 49	11 to 48	11 to 51	10 to 52
Digits backward (max = 66)	22.1	22.7	18.7	25.5
	(9.8)	(8.7)	(8.4)	(11.5)
	4 to 46	4 to 45	0 to 43	9 to 47
Math calculation (max = 8)	5.3	4.6	4.7	5.5
	(2.3)	(2.5)	(2.3)	(1.9)
	0 to 8	0 to 8	0 to 8	0 to 8
Episodic memory
Immediate memory (max = 11)	9.0	8.3	7.7	8.8
	(1.6)	(1.9)	(2.0)	(1.5)
	5 to 11	5 to 11	4 to 11	5 to 11
Delayed memory (max = 27)	18.8	18.6	17.3	19.2
	(3.5)	(3.4)	(4.2)	(2.9)
	9 to 27	11 to 26	9 to 26	9 to 23
Percent retention memory (max = 100)	85.7	87.8	84.7	89.2
	(13.4)	(10.8)	(19.7)	(13.8)
	50 to 100	60 to 100	14 to 100	50 to 100