2021
Developing a cognitive dysfunction risk score for use with opioid-dependent persons in drug treatment
Copenhaver MM, Sanborn V, Shrestha R, Mistler CB, Sullivan MC, Gunstad J. Developing a cognitive dysfunction risk score for use with opioid-dependent persons in drug treatment. Drug And Alcohol Dependence 2021, 224: 108726. PMID: 33930640, PMCID: PMC8180490, DOI: 10.1016/j.drugalcdep.2021.108726.Peer-Reviewed Original ResearchConceptsMild cognitive impairmentCognitive dysfunctionRisk scoreDrug treatmentPredictors of MCIOpioid-dependent personsOpioid use disorderPredictive risk scoreMedical chart dataNeuro-cognitive impairmentResource-limited settingsChart dataDrug treatment facilitiesAddiction-related servicesLarger validation studiesPatient demographicsROC curve areaUse disordersTreatment engagementCognitive impairmentPatientsOptimal cutClinical settingLogistic regressionMCI casesUse of Pre-exposure Prophylaxis Among People Who Inject Drugs: Exploratory Findings of the Interaction Between Race, Homelessness, and Trust
Zhou X, Altice FL, Chandra D, Didomizio E, Copenhaver MM, Shrestha R. Use of Pre-exposure Prophylaxis Among People Who Inject Drugs: Exploratory Findings of the Interaction Between Race, Homelessness, and Trust. AIDS And Behavior 2021, 25: 3743-3753. PMID: 33751313, DOI: 10.1007/s10461-021-03227-7.Peer-Reviewed Original ResearchConceptsPre-exposure prophylaxisPrEP useProvider trustPatient-level factorsOpioid-dependent patientsLogistic regression analysisNon-homeless participantsHomeless participantsRace/ethnicityEligibility criteriaCross-sectional dataPrEPProphylaxisMethadoneRegression analysisDrugsExploratory findingsParticipantsPotential moderatorsPWIDPatientsSignificant moderator
2019
HIV-Related Stigma, Motivation to Adhere to Antiretroviral Therapy, and Medication Adherence Among HIV-Positive Methadone-Maintained Patients
Shrestha R, Altice FL, Copenhaver MM. HIV-Related Stigma, Motivation to Adhere to Antiretroviral Therapy, and Medication Adherence Among HIV-Positive Methadone-Maintained Patients. JAIDS Journal Of Acquired Immune Deficiency Syndromes 2019, 80: 166-173. PMID: 30383588, PMCID: PMC6331231, DOI: 10.1097/qai.0000000000001891.Peer-Reviewed Original ResearchConceptsOptimal ART adherenceAntiretroviral therapyMethadone-maintained patientsMethadone maintenance treatmentART adherenceMaintenance treatmentHIV treatment outcomesHIV-positive patientsOpioid agonist therapyMultivariable logistic regressionHIV risk behaviorsExplanatory pathwaysAgonist therapySuboptimal adherenceMedication adherenceHIV treatmentTreatment outcomesHIV stigmaPatientsLogistic regressionHIVPrevention initiativesTherapyAdherenceSignificant correlates
2018
Viral suppression among HIV-infected methadone-maintained patients: The role of ongoing injection drug use and adherence to antiretroviral therapy (ART)
Shrestha R, Copenhaver MM. Viral suppression among HIV-infected methadone-maintained patients: The role of ongoing injection drug use and adherence to antiretroviral therapy (ART). Addictive Behaviors 2018, 85: 88-93. PMID: 29879611, PMCID: PMC6337064, DOI: 10.1016/j.addbeh.2018.05.031.Peer-Reviewed Original ResearchConceptsMethadone maintenance therapyMethadone-maintained patientsOngoing injection drug useViral suppressionAntiretroviral therapyInjection drug useHIV risk behaviorsDrug useSelf-reported HIV risk behaviorsImproved virologic outcomesOptimal ART adherenceHigher CD4 countsSustained viral suppressionMultivariable logistic regressionVirologic outcomesCD4 countMaintenance therapyOptimal adherenceART adherenceHIV treatmentIndependent correlatesTreatment challengesRisk populationsPatientsHIV
2016
An Exploratory Factor Analysis of a Brief Self-Report Scale to Detect Neurocognitive Impairment Among Participants Enrolled in Methadone Maintenance Therapy
Copenhaver M, Shrestha R, Wickersham JA, Weikum D, Altice FL. An Exploratory Factor Analysis of a Brief Self-Report Scale to Detect Neurocognitive Impairment Among Participants Enrolled in Methadone Maintenance Therapy. Journal Of Substance Use And Addiction Treatment 2016, 63: 61-65. PMID: 26879859, PMCID: PMC4775373, DOI: 10.1016/j.jsat.2016.01.002.Peer-Reviewed Original ResearchConceptsMethadone maintenance therapyNeuropsychological Impairment ScaleNeurocognitive impairmentMaintenance therapySex-related HIV risk behaviorsHIV risk behaviorsClinical care settingsNeuro-cognitive impairmentExploratory factor analysisCare settingsImpairment ScaleRisk behaviorsAddiction treatmentBrief self-report scaleImpairmentSelf-report measuresSelf-report scalesPatientsPrincipal axis factoringCognitive functioningTherapyFactor analysisOrthogonal varimax rotationPresent studyPotential utility
2015
Gender differences in associations between neurocognitive impairment and cocaine use among high-risk cocaine-dependent methadone-maintained patients
Shrestha R, Huedo-Medina T, Copenhaver M. Gender differences in associations between neurocognitive impairment and cocaine use among high-risk cocaine-dependent methadone-maintained patients. Drug And Alcohol Dependence 2015, 156: e204. DOI: 10.1016/j.drugalcdep.2015.07.549.Peer-Reviewed Original Research