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. Author manuscript; available in PMC: 2012 Apr 16.
Published in final edited form as: J Clin Exp Neuropsychol. 2011 Oct 13;33(10):1108–1118. doi: 10.1080/13803395.2011.604027

TABLE 2.

HIV disease and medical characteristics of the study samples

Young
Old
p Pairwise comparisons
HIV− (n = 59) HIV+ (n = 53) HIV− (n = 54) HIV+ (n = 88)
Hepatitis C (%) 3 4 17 34 <.001 O+ > O− > Y+, Y−
Hypertension (%) 2 9 22 30 <.001 O+ > Y+, Y−
Hypercholesterolemia (%) 0 2 15 19 <.001 O+, O− > Y+, Y−
Diabetes mellitus (%) 0 2 7 10 .031 O+ > Y−
HIV disease characteristics
 HIV duration (years)a 6.9 (5.2) 15.3 (7.4) <.001 O+ > Y+
 AIDS (%) 25 64 <.001 O+ > Y+
 cART (%) 70 81 .222
 Nadir CD4b (cells/μl) 265 (204, 356) 123 (40, 300) <.001 O+ < Y+
 Current CD4b (cells/μl) 559 (404, 840) 512 (308, 738) .182
 Detectable plasma HIV RNA (%) 40 24 .058
 Detectable CSF HIV RNAc (%) 28 16 .176

Note. Y− = younger HIV seronegative; O− = older HIV seronegative; Y+ = younger HIV seropositive; O+ = older HIV seropositive; CD4 = cluster of differentiation 4; CSF = cerebrospinal fluid; cART = combination antiretroviral therapy.

a

Data represent means with standard deviations in parentheses.

b

Data represent medians with interquartile ranges in parentheses.

c

O+, n = 56; Y+, n = 36.