Table 2.

Cognitive performance by composite Z-score cognitive domain at baseline in HIV-uninfected individuals and in HIV-infected individuals before and after 12 weeks on cART

Composite Z-score	HIV− baseline (mean ± SE)	HIV+ baseline (mean ± SE)	HIV+ 12 weeks (mean ± SE)	HIV− vs. baseline HIV+ (p value)a	HIV+ 12 weeks vs. HIV− (p value)a	HIV+ baseline vs. 12 weeks (p value)b
Executive function	0.30 ± 0.28	−0.24 ± 0.23	−0.06 ± 0.21	0.125	0.379	0.332
Speed of information processing	0.33 ± 0.21	−0.13 ± 0.25	−0.20 ± 0.26	0.179	0.158	1.000
Attention	0.21 ± 0.22	−0.23 ± 0.27	0.02 ± 0.23	0.343	0.617	0.309
Learning	0.09 ± 0.22	−0.13 ± 0.22	0.04 ± 0.29	0.502	0.667	0.404
Memory	0.00 ± 0.22	−0.12 ± 0.24	0.11 ± 0.27	0.730	0.654	0.094
Motor	0.53 ± 0.22	−0.29 ± 0.26	−0.24 ± 0.21	0.023	0.025	0.624
Total composite Z-score	1.46 ± 0.86	−1.14 ± 1.07	−0.32 ± 0.9	0.020	0.057	0.174

^aWilcoxon rank-sum test

^bWilcoxon signed-rank test

p-value < 0.05 were in italics