Characteristics of patients enrolled in studies of the HIV Dementia Scale (HDS) and International HIV Dementia Scale (IHDS).

*<p>Sample sizes refer to the number of patients with data that were useable for meta-analysis, following discussion with study authors as necessary.</p>**<p>Participants were randomly selected from an existing cohort, in proportions approximating published prevalence of MND and HAD.</p>***<p>Participants were sampled to generate two equal groups (n = 50 each): those with symptoms of cognitive impairment and those without. The quoted prevalence of MND and HAD is based on extrapolation up to a larger sample (n = 200) receiving a symptom questionnaire.</p>****<p>The paper reported two independent samples, treated as separate studies in this review.</p><p>AAN: American Academy of Neurology; ADC: AIDS dementia complex; ART, antiretroviral therapy; HAD: HIV-associated dementia; HDS: HIV dementia scale; IHDS: international HIV dementia scale; IQR: inter-quartile range; MCMD: minor cognitive/motor disorder; MMSE, mini mental state examination; MND: minor neurocognitive disorder; NCI: neurocognitive impairment; SD: standard deviation (numbers refer to number of SD relative to normative means).