Methods of assessment, target population, and exclusion criteria in studies of the HIV Dementia Scale (HDS) and International HIV Dementia Scale (IHDS).

*Unless stated, assessment for comprehensive clinical criteria (MSK, AAN, or Frascati) included neuropsychological evaluation of at least 5 cognitive domains.**Major exclusion criteria were: A, past and/or recent drug and/or alcohol abuse; B, head trauma with loss of consciousness; C, neurological illness; D, psychiatric illness; E, systemic illness that may affect CNS function.***Participants were randomly selected from an existing cohort, in proportions approximating published prevalence of MND and HAD.****The paper reported two independent samples, treated as separate studies in this review.AAN: American Academy of Neurology; ART: antiretroviral therapy; HAART: highly active antiretroviral therapy; HDS: HIV dementia scale; IHDS: international HIV dementia scale; MSK: Memorial Sloan-Kettering; NCI: neurocognitive impairment; NP: neuropsychological; NR: not reported.