Early psychomotor slowing predicts the development of HIV dementia and autopsy-verified HIV encephalitis

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Abstract
OBJECTIVES- To ask if slowed motor speed predicts later human immunodeficiency virus (HIV) dementia and HIV encephalitis. METHODS- In 100 deceased acquired immunodeficiency syndrome (AIDS) patients prior results from repeated testing of the movement reaction time test were correlated with later clinical signs of HIV dementia and with neuropathological signs of HIV encephalitis. Autopsy was performed in 72 patients. RESULTS- Movement reaction time 1-2 years prior to death, or at the time of clinical AIDS diagnosis predicted both development of HIV dementia (P<0.05) and HIV encephalitis at autopsy (P<0.01). CONCLUSION- Testing for early psychomotor slowing may be used to identify patients at risk of HIV dementia and HIV encephalitis.