Monroe AK, et al. – Authors aimed at assessing antiretroviral use during gaps in HIV primary care using multisite Medicaid claims and clinical data. Medicaid–insured individuals commonly receive antiretroviral therapy (ART) during gaps in HIV primary care, but almost half do not. Retention measures based on visit frequency data that do not incorporate receipt of ART and/or viral suppression may misclassify individuals who remain suppressed on ART as not retained.