Abstract
This study determines the optimal cut-off scores for the Montreal Cognitive Assessment (MoCA) to detect HIV-associated neurocognitive disorders (HAND) in a multi-ethnic Malaysian HIV-positive cohort by developing demographically corrected normative standards among 283 HIV-negative community-based controls with overlapping demographic characteristics. The norms (corrected for age, sex, education, ethnicity) were applied to 342 HIV-positive virally suppressed individuals on cART. Impairment rates were classified using the Global Deficit Score (GDS ≥ .5) method. The MoCA was also scored according to the recommended cut-off of ≤ 26, and functional decline was applied to both impairment definitions to classify HAND per the Frascati criteria. The ≤ 26 cut-off considerably overestimated cognitive impairment in both samples (59.4% HIV-negative; 69.3% HIV-positive). In contrast, corrected scores yielded impairment rates consistent with what has been reported internationally in virally suppressed cohorts (23.4% with 83.3% mild impairment, 16.7% moderate impairment). A supplemental file allowing the computation of corrected MoCA scores and impairment status is included.
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Funding
This study was funded by the University of Malaya High Impact Research grants HIR/MOHE H-20001-E000001 (RR, AK, SFO), UM.0000099/HIR.C3 (SK, AVC) and by the National Institute of Allergy & Infectious Diseases of the National Institutes of Health under award number T32AI114398 (TM). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.
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All procedures performed in this study involving human participants were in accordance with the ethical standards of the University of Malaya and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
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Mukherjee, T., Sakthivel, R., Fong, H.Y. et al. Utility of Using the Montreal Cognitive Assessment (MoCA) as a Screening Tool for HIV-Associated Neurocognitive Disorders (HAND) In Multi-Ethnic Malaysia. AIDS Behav 22, 3226–3233 (2018). https://doi.org/10.1007/s10461-018-2073-x
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DOI: https://doi.org/10.1007/s10461-018-2073-x