Distribution of patients with HAD and without neurocognitive impairment (NCI) stratified by plasma sCD14 levels.

AIDS patients with CD4 counts <300 cells/µl were classified based on plasma sCD14 levels at one (n = 41) or two (n = 17) visits into 2 groups (cutoff 2.4 µg/ml, the median sCD14 value in the AIDS cohort). The distribution of patients with HAD or without NCI in these 2 groups was analyzed for statistical significance using the Chi-square test (p = 0.026) and odds ratio (2.8, with 95% confidence interval 1.121–7.376). The distribution of MCMD patients in the two groups was similar (p = 0.2).