Table 4.

Participant characteristics as a function of duration of infection

	Less than 10 years	10–20 years	Greater than 20 years	(F, r, p)
N	23	13	48
Time since infectiona	4.26 (.86)	16.2 (2.7)	22.7 (.57)	1787, .99, <.001
Basal ganglia volume	2.25 (.31)	2.00 (.28)	1.91 (.25)	12.6, .56, <.001
Age	54.3 (3.0)	56.4 (3.9)	57.2 (4.1)	4.71,.32, <.001
CD4+ cell count
Current	503.3 (273)	568.1 (279)	549.0 (272)	.28, .09, >.10
Nadirb	271.8 (70.0)	242.2 (134)	221.1 (126)	.40, .11, >.10
HIV viral load
Current	2.12 (1.0)	2.01 (.92)	2.04 (.92)	.08, .05, >.10
Peakc	4.89 (.35)	5.22 (.41)	4.90 (.67)	1.36, .21, >.10
On HAART (percent (N))	83 (19)	92 (12)	73 (35)	1.13, −.12, .29d

^aVisit with first confirmed HIV seropositivity. Includes both prevalent and incident cases (n = 84)

^bLowest measured CD4+ cell count prior to HAART (n = 65)

^cHighest HIV RNA prior to HAART (n = 65)

^dχ², r, p