Olga Morozova, PhD
Visiting Assistant ProfessorCards
About
Research
Publications
2025
Integrating Methadone Services Into Primary Care in Ukraine: Two-Year Outcomes From a Randomized Trial.
Machavariani E, Esserman D, Dumchev K, Filippovych M, Pykalo I, Ivasiy R, Madden L, Bromberg D, Haddad M, Morozova O, Oliveros D, Ahmad B, Dvoriak S, Altice F. Integrating Methadone Services Into Primary Care in Ukraine: Two-Year Outcomes From a Randomized Trial. Annals Of Internal Medicine 2025 PMID: 41359964, DOI: 10.7326/annals-25-01764.Peer-Reviewed Original ResearchQuality health indicatorsHealth care usePrimary care settingPrimary careOpioid use disorderHealth indicatorsSpecialty clinicsCare useCare settingsOpioid agonist therapyTwo-group randomized controlled trialPrimary care centersSpecialty clinical careMiddle-income countriesRandomized Controlled TrialsProvider discomfortHealth outcomesHealth careComorbidity managementClinical careTwo-groupCareCare centerPrimary outcomeSpecialtyHIV Viral Rebound on Dolutegravir, Lopinavir, and Efavirenz: National Program Data Analysis From Ukraine
Morozova O, Conroy K, Riabokon S, Germanovich M, Zelinskyi Y, Puttkammer N, Dumchev K. HIV Viral Rebound on Dolutegravir, Lopinavir, and Efavirenz: National Program Data Analysis From Ukraine. JAIDS Journal Of Acquired Immune Deficiency Syndromes 2025, 99: 395-404. PMID: 40193057, PMCID: PMC12629402, DOI: 10.1097/qai.0000000000003676.Peer-Reviewed Original ResearchSARS-COV-2 re-infection and incidence of post-acute sequelae of COVID-19 (PASC) among essential workers in New York: a retrospective cohort study
Babalola T, Clouston S, Sekendiz Z, Chowdhury D, Soriolo N, Kawuki J, Meliker J, Carr M, Valenti B, Fontana A, Melendez O, Morozova O, Luft B. SARS-COV-2 re-infection and incidence of post-acute sequelae of COVID-19 (PASC) among essential workers in New York: a retrospective cohort study. The Lancet Regional Health - Americas 2025, 42: 100984. PMID: 39866362, PMCID: PMC11764319, DOI: 10.1016/j.lana.2024.100984.Peer-Reviewed Original ResearchPost-acute sequelae of COVID-19SARS-CoV-2 infectionSARS-CoV-2 re-infectionEssential workersMedical recordsFollow-up callsNational Institute on AgingRisk factorsAge of participantsIn-person questionnairePoisson regression modelsSequelae of COVID-19Institute on AgingPost-acute sequelaeSARS-CoV-2Re-infectionPost-acute sequelae of COVID-19 patientsRetrospective cohort studyIn-personCohort studyCOVID-19Relevant demographicsSevere COVID-19Regression modelsPolymerase chain reaction
2024
Design and implementation of a Type-2 hybrid, prospective randomized trial of opioid agonist therapies integration into primary care clinics in Ukraine
Machavariani E, Dumchev K, Pykalo I, Filippovych M, Ivasiy R, Esserman D, Madden L, Bromberg D, Haddad M, Morozova O, Ahmad B, Gómez D, Farnum S, Dvoriak S, Altice F. Design and implementation of a Type-2 hybrid, prospective randomized trial of opioid agonist therapies integration into primary care clinics in Ukraine. Contemporary Clinical Trials 2024, 146: 107690. PMID: 39265780, PMCID: PMC11531372, DOI: 10.1016/j.cct.2024.107690.Peer-Reviewed Original ResearchPrimary care centersQuality health indicatorsNon-communicable diseasesSpecialty treatment centersOpioid agonist therapyImplementation of integrated carePay-for-performance incentivesPrimary care clinicsPrimary care settingSelf-reported prevalencePay-for-performancePrevalence of medical comorbiditiesParticipants self-reportedEffective evidence-based treatmentsHealth of PWIDEvidence-based treatmentsIntegrated careCare clinicsImplementation outcomesImplementation trialCare settingsElectronic chart reviewHigh-burden countriesSpecialty servicesHIV prevalenceCharacterization of Change in Cognition Before and After COVID-19 Infection in Essential Workers at Midlife
Sekendiz Z, Morozova O, Carr M, Fontana A, Mehta N, Ali A, Jiang E, Babalola T, Clouston S, Luft B. Characterization of Change in Cognition Before and After COVID-19 Infection in Essential Workers at Midlife. American Journal Of Medicine Open 2024, 12: 100076. PMID: 39498311, PMCID: PMC11533481, DOI: 10.1016/j.ajmo.2024.100076.Peer-Reviewed Original ResearchCognitive performanceCognitive declineLongitudinal cognitive dataPostacute sequelae of SARS-CoV-2 infectionCognitive dataCognitive deteriorationNormal agingCognitive throughputCausal modelLongitudinal modelMidlifeCohort studyParticipantsYears of normal agingMedical factorsEssential workersPostacute sequelaeCognitionSequelae of SARS-CoV-2 infection“Will you need this health at all? Will you be alive?”: using the bioecological model of mass trauma to understand HIV care experiences during the war in Ukraine
Owczarzak J, Monton O, Fuller S, Burlaka J, Kiriazova T, Morozova O, Dumchev K. “Will you need this health at all? Will you be alive?”: using the bioecological model of mass trauma to understand HIV care experiences during the war in Ukraine. Journal Of The International AIDS Society 2024, 27: e26307. PMID: 39030874, PMCID: PMC11258484, DOI: 10.1002/jia2.26307.Peer-Reviewed Original ResearchConceptsHIV-positive peopleHIV careHealthcare providersMass traumaProvision of HIV careHIV care experienceCompetent healthcare providersSocial workersParticipant referralsCare experiencesHealthcare accessFinancial support networkFramework methodMedication adherenceConvenience sampleMedication accessTreatment gapMedical servicesHIV clinicOpioid use disorderThematic analysisHealthcare systemDrug treatment programmesHealthcare infrastructureVulnerable populationsPatterns of daily oral HIV PrEP adherence among people who inject drugs in Ukraine: an analysis of biomarkers
Morozova O, Kornilova M, Makarenko O, Antoniak S, Liulchuk M, Varetska O, Dumchev K. Patterns of daily oral HIV PrEP adherence among people who inject drugs in Ukraine: an analysis of biomarkers. Journal Of The International AIDS Society 2024, 27: e26319. PMID: 39030884, PMCID: PMC11258450, DOI: 10.1002/jia2.26319.Peer-Reviewed Original ResearchConceptsReal-life effectivenessInjected drugsPrEP adherenceOral HIV pre-exposure prophylaxisDaily oral PrEPHIV pre-exposure prophylaxisEffectiveness of PrEPSMS remindersInjection drug usePre-exposure prophylaxisCorrelates of adherencePrEP self-efficacyEmtricitabine triphosphateOral PrEPPrEP formulationsMeasures of adherenceLongitudinal patternsAdherence patternsPrEP useHigh riskSexual intercourseSelf-ReportAlcohol consumptionDetected metabolitesHIV riskPrevalence and Correlates of Depression and Bipolar Disorder Among Patients Maintained on Methadone and Buprenorphine in Ukraine
Morozova O, Dvoriak V, Dumchev K, Machavariani E, Bromberg D, Dvoriak S, Altice F. Prevalence and Correlates of Depression and Bipolar Disorder Among Patients Maintained on Methadone and Buprenorphine in Ukraine. International Journal Of Mental Health And Addiction 2024, 23: 4310-4327. PMID: 40823203, PMCID: PMC12356126, DOI: 10.1007/s11469-024-01353-6.Peer-Reviewed Original ResearchCorrelates of depressionBipolar disorderUse disorderPrevalence of psychiatric disordersBurden of mental health disordersCo-occurring disordersAlcohol use disorderSubstance use disordersMental health disordersIntegrated care strategiesCluster randomized trialAnalyzed baseline dataOpioid use disorderPsychiatric disordersMethadone dosageDepression diagnosisStigma levelsPHQ-9Moderate/severe depressionHealth disordersDepressionCare strategiesPhysical healthDrug injectionDisordersModes of HIV transmission among young women and their sexual partners in Ukraine
Zeziulin O, Kornilova M, Deac A, Morozova O, Varetska O, Pykalo I, Dumchev K. Modes of HIV transmission among young women and their sexual partners in Ukraine. PLOS ONE 2024, 19: e0305072. PMID: 38923979, PMCID: PMC11207155, DOI: 10.1371/journal.pone.0305072.Peer-Reviewed Original ResearchConceptsSexually transmitted infectionsMode of HIV transmissionHIV transmissionHeterosexual transmissionSexual partnersPrevalence of sexually transmitted infectionsHeterosexual HIV transmissionYoung womenBridge populationHIV status disclosureHIV prevention effortsLow educational levelCross-sectional surveyHCV-positiveHIV diagnosisHIV testingIntimate partner violenceHCV testingHIV epidemicAGYWCondom useHIVInjected drugsStatus disclosureDeterminants of transmissionTowards Improved Uncertainty Quantification of Stochastic Epidemic Models Using Sequential Monte Carlo
Fadikar A, Stevens A, Collier N, Toh K, Morozova O, Hotton A, Clark J, Higdon D, Ozik J. Towards Improved Uncertainty Quantification of Stochastic Epidemic Models Using Sequential Monte Carlo. 2024, 00: 843-852. DOI: 10.1109/ipdpsw63119.2024.00151.Peer-Reviewed Original ResearchSequential importance samplingComputational capabilitiesHigh-performance computing resourcesSequential Monte CarloComputational resourcesEstimation of posterior distributionsImportance samplingReal-timeImproved uncertainty quantificationIntegrated frameworkState estimationOnline environmentParameter inferencePosterior distributionEpidemic simulationsDynamical systemsComputational methodologyFrameworkMonte CarloParameter estimationAlgorithmSimulationDynamics of epidemics