Characteristics of the study sample.

Data expressed as median (interquartile range), except when indicated otherwise. Standardized scores are adjusted for age, gender and education, according to available normative data. Abbreviations: ANI, asymptomatic neurocognitive impairment; ART, antiretroviral therapy; HAD, HIV-associated dementia; HAND, HIV-associated neurocognitive disorder; HCV, hepatitis C virus; MND, mild neurocognitive disorder. aART interruption defined as discontinuing therapy>15 days at any time for any reason in the past. bUndetectable at ≤40 copies/mL level. cDepression scores based on the Beck Depression Inventory test. dAnxiety scores based on the State-Trait Anxiety Inventory. ePremorbid intelligence scores based on the Vocabulary test from the Wechsler Adult Intelligence Scale-III. fFrom patients with neurocognitive impairment. gPotential confounding comorbidities defined as lifetime or current diagnosis of a psychiatric disorder, receiving psychopharmacologic therapy, drug or alcohol abuse, and prior or current CNS-related disease. Characteristics of the study sample.