Characteristics of the study sample.

<p>Data expressed as median (interquartile range), except when indicated otherwise.</p><p>Standardized scores are adjusted for age, gender and education, according to available normative data.</p><p>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.</p><p><i>^a</i>ART interruption defined as discontinuing therapy>15 days at any time for any reason in the past.</p><p><i>^b</i>Undetectable at ≤40 copies/mL level.</p><p><i>^c</i>Depression scores based on the Beck Depression Inventory test.</p><p><i>^d</i>Anxiety scores based on the State-Trait Anxiety Inventory.</p><p><i>^e</i>Premorbid intelligence scores based on the Vocabulary test from the Wechsler Adult Intelligence Scale-III.</p><p><i>^f</i>From patients with neurocognitive impairment.</p><p><i>^g</i>Potential 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.</p><p>Characteristics of the study sample.