Featured Publications
Excess Mortality and Years of Potential Life Lost Among the Black Population in the US, 1999-2020
Caraballo C, Massey D, Ndumele C, Haywood T, Kaleem S, King T, Liu Y, Lu Y, Nunez-Smith M, Taylor H, Watson K, Herrin J, Yancy C, Faust J, Krumholz H. Excess Mortality and Years of Potential Life Lost Among the Black Population in the US, 1999-2020. JAMA 2023, 329: 1662-1670. PMID: 37191702, PMCID: PMC10189563, DOI: 10.1001/jama.2023.7022.Peer-Reviewed Original ResearchConceptsExcess mortality ratesExcess deathsMortality ratePotential lifeWhite populationExcess mortalitySerial cross-sectional studyHighest excess mortality ratesBlack populationCause-specific mortalityCross-sectional studyHigh mortality rateNon-Hispanic whitesYears of lifeUS national dataMiddle-aged adultsCause mortalityHeart diseaseDeath certificatesNon-Hispanic black populationMAIN OUTCOMEAge groupsDisease controlMortalityBlack malesTrends in Racial and Ethnic Disparities in Barriers to Timely Medical Care Among Adults in the US, 1999 to 2018
Caraballo C, Ndumele CD, Roy B, Lu Y, Riley C, Herrin J, Krumholz HM. Trends in Racial and Ethnic Disparities in Barriers to Timely Medical Care Among Adults in the US, 1999 to 2018. JAMA Health Forum 2022, 3: e223856. PMID: 36306118, PMCID: PMC9617175, DOI: 10.1001/jamahealthforum.2022.3856.Peer-Reviewed Original ResearchConceptsTimely medical careSerial cross-sectional studyNational Health Interview SurveyCross-sectional studyHealth Interview SurveyMedical careLack of transportationEthnic disparitiesHispanics/LatinosWhite individualsEthnicity groupsInterview SurveyCost of careSelf-reported raceStudy cohortClinic hoursMAIN OUTCOMEMedical officesCarePrevalenceLatino individualsBlack individualsSignificant differencesSignificant increasePopulation groupsEvaluation of Temporal Trends in Racial and Ethnic Disparities in Sleep Duration Among US Adults, 2004-2018
Caraballo C, Mahajan S, Valero-Elizondo J, Massey D, Lu Y, Roy B, Riley C, Annapureddy AR, Murugiah K, Elumn J, Nasir K, Nunez-Smith M, Forman HP, Jackson CL, Herrin J, Krumholz HM. Evaluation of Temporal Trends in Racial and Ethnic Disparities in Sleep Duration Among US Adults, 2004-2018. JAMA Network Open 2022, 5: e226385. PMID: 35389500, PMCID: PMC8990329, DOI: 10.1001/jamanetworkopen.2022.6385.Peer-Reviewed Original ResearchConceptsCross-sectional studyLong sleep durationSleep durationWhite individualsBlack individualsLatino individualsEthnic differencesSerial cross-sectional studyNational Health Interview Survey dataHealth Interview Survey dataSelf-reported sleep durationShort sleep durationInterview Survey dataMiddle-aged adultsSelf-reported raceEstimated prevalenceMAIN OUTCOMELong sleepSleep deficiencyHigher household incomeEthnic disparitiesAge groupsHealth disparitiesPrevalenceSleep disparitiesTrends in Differences in Health Status and Health Care Access and Affordability by Race and Ethnicity in the United States, 1999-2018
Mahajan S, Caraballo C, Lu Y, Valero-Elizondo J, Massey D, Annapureddy AR, Roy B, Riley C, Murugiah K, Onuma O, Nunez-Smith M, Forman HP, Nasir K, Herrin J, Krumholz HM. Trends in Differences in Health Status and Health Care Access and Affordability by Race and Ethnicity in the United States, 1999-2018. JAMA 2021, 326: 637-648. PMID: 34402830, PMCID: PMC8371573, DOI: 10.1001/jama.2021.9907.Peer-Reviewed Original ResearchConceptsHealth care accessFair health statusSelf-reported health statusCare accessHealth statusWhite individualsEthnic differencesLatino/HispanicNational Health Interview Survey dataSerial cross-sectional studySelf-reported functional limitationsBlack individualsHealth Interview Survey dataLow incomeCross-sectional studyCross-sectional survey studyInterview Survey dataSelf-reported raceSelf-report measuresMAIN OUTCOMEUS adultsFunctional limitationsPercentage of peopleSignificant decreaseAdults
2023
Impact of Marital Stress on 1‐Year Health Outcomes Among Young Adults With Acute Myocardial Infarction
Zhu C, Dreyer R, Li F, Spatz E, Caraballo‐Cordovez C, Mahajan S, Raparelli V, Leifheit E, Lu Y, Krumholz H, Spertus J, D'Onofrio G, Pilote L, Lichtman J. Impact of Marital Stress on 1‐Year Health Outcomes Among Young Adults With Acute Myocardial Infarction. Journal Of The American Heart Association 2023, 12: e030031. PMID: 37589125, PMCID: PMC10547344, DOI: 10.1161/jaha.123.030031.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCardiac-specific qualityGeneric health statusMyocardial infarctionBaseline healthMarital stressHealth outcomesHealth statusWorse patient-reported outcomesMental healthYoung adultsObservational cohort studyPatient-reported outcomesSocioeconomic factorsWorse mental healthReadmission 1Cause readmissionCohort studyYounger patientsRoutine screeningDepressive symptomsGreater oddsAnginaMale participantsOutcomes
2022
Hemodynamic differences between women and men with elevated blood pressure in China: A non-invasive assessment of 45,082 adults using impedance cardiography
Caraballo C, Mahajan S, Gu J, Lu Y, Spatz ES, Dreyer RP, Zhang M, Sun N, Ren Y, Zheng X, Zhao H, Lu H, J. Z, Krumholz HM. Hemodynamic differences between women and men with elevated blood pressure in China: A non-invasive assessment of 45,082 adults using impedance cardiography. PLOS ONE 2022, 17: e0269777. PMID: 35700163, PMCID: PMC9197037, DOI: 10.1371/journal.pone.0269777.Peer-Reviewed Original ResearchConceptsElevated blood pressureSystemic vascular resistance indexVascular resistance indexBlood pressureCardiac indexResistance indexHigh systemic vascular resistance indexLower systemic vascular resistance indexHigher mean systolic blood pressureMean diastolic blood pressureMean systolic blood pressureImpedance cardiographyLow cardiac indexHigher cardiac indexDiastolic blood pressureSystolic blood pressureBody mass indexYear old womanPersonalization of treatmentSame age groupNon-invasive assessmentSex differencesHemodynamic profileMass indexHemodynamic differencesPhysical Activity Among Patients With Intracardiac Remote Monitoring Devices Before, During, and After COVID-19–Related Restrictions
Lu Y, Jones PW, Murugiah K, Caraballo C, Massey DS, Mahajan S, Ahmed R, Bader EM, Krumholz HM. Physical Activity Among Patients With Intracardiac Remote Monitoring Devices Before, During, and After COVID-19–Related Restrictions. Journal Of The American College Of Cardiology 2022, 79: 309-310. PMID: 35057917, PMCID: PMC8763290, DOI: 10.1016/j.jacc.2021.11.010.Peer-Reviewed Original ResearchCost-Related Medication Nonadherence in Adults With Diabetes in the United States: The National Health Interview Survey 2013-2018.
Taha MB, Valero-Elizondo J, Yahya T, Caraballo C, Khera R, Patel KV, Ali HJR, Sharma G, Mossialos E, Cainzos-Achirica M, Nasir K. Cost-Related Medication Nonadherence in Adults With Diabetes in the United States: The National Health Interview Survey 2013-2018. Diabetes Care 2022, 45: 594-603. PMID: 35015860, DOI: 10.2337/dc21-1757.Peer-Reviewed Original ResearchConceptsCost-related medication nonadherenceNational Health Interview SurveyLack of insuranceMedication nonadherenceNational Health Interview Survey 2013Duration of diabetesHigher comorbidity burdenSelf-reported diabetesHealth Interview SurveyWorse health outcomesHealth-related expendituresComorbidity burdenInsulin useCurrent smokingLess medicationMedication adherenceFemale sexWeighted prevalenceHigher oddsAge subgroupsSkipping dosesDiabetesHealth outcomesElderly adultsNHIS participants
2021
National Trends in Racial and Ethnic Disparities in Antihypertensive Medication Use and Blood Pressure Control Among Adults With Hypertension, 2011–2018
Lu Y, Liu Y, Dhingra LS, Massey D, Caraballo C, Mahajan S, Spatz ES, Onuma O, Herrin J, Krumholz HM. National Trends in Racial and Ethnic Disparities in Antihypertensive Medication Use and Blood Pressure Control Among Adults With Hypertension, 2011–2018. Hypertension 2021, 79: 207-217. PMID: 34775785, DOI: 10.1161/hypertensionaha.121.18381.Peer-Reviewed Original ResearchConceptsAntihypertensive medication usePoor hypertension controlOverall treatment rateLow control rateHypertension controlHypertension awarenessMedication useControl rateHispanic individualsEthnic differencesTreatment ratesBlack individualsGuideline-recommended medicationsBlood pressure controlWhite individualsNutrition Examination SurveyLow awareness rateAntihypertensive medicationsHypertensive peopleExamination SurveyIntensive medicationNational HealthAwareness rateEthnic disparitiesPressure controlTracking Self-reported Symptoms and Medical Conditions on Social Media During the COVID-19 Pandemic: Infodemiological Study
Ding Q, Massey D, Huang C, Grady CB, Lu Y, Cohen A, Matzner P, Mahajan S, Caraballo C, Kumar N, Xue Y, Dreyer R, Roy B, Krumholz HM. Tracking Self-reported Symptoms and Medical Conditions on Social Media During the COVID-19 Pandemic: Infodemiological Study. JMIR Public Health And Surveillance 2021, 7: e29413. PMID: 34517338, PMCID: PMC8480398, DOI: 10.2196/29413.Peer-Reviewed Original ResearchEvaluation of Racial and Ethnic Disparities in Cardiac Transplantation
Chouairi F, Fuery M, Clark KA, Mullan CW, Stewart J, Caraballo C, Clarke J, Sen S, Guha A, Ibrahim NE, Cole RT, Holaday L, Anwer M, Geirsson A, Rogers JG, Velazquez EJ, Desai NR, Ahmad T, Miller PE. Evaluation of Racial and Ethnic Disparities in Cardiac Transplantation. Journal Of The American Heart Association 2021, 10: e021067. PMID: 34431324, PMCID: PMC8649228, DOI: 10.1161/jaha.120.021067.Peer-Reviewed Original ResearchConceptsWhite patientsHispanic patientsBlack patientsCardiac transplantationHeart transplantationHigh riskEthnic disparitiesAdult heart recipientsAllocation system changePost-transplant deathPost-transplant mortalityOrgan Sharing databasePost-transplantation deathNew allocation systemHeart recipientsDiabetes mellitusRenal diseaseSharing databaseTransplantation ratesUnited NetworkContemporary outcomesPatientsTransplantationDonor characteristicsStudy periodThe Impact of Depression on Outcomes in Patients With Heart Failure and Reduced Ejection Fraction Treated in the GUIDE-IT Trial
Chouairi F, Fuery MA, Mullan CW, Caraballo C, Sen S, Maulion C, Wilkinson ST, Surti T, McCullough M, Miller PE, Pacor J, Leifer ES, Felker GM, Velazquez EJ, Fiuzat M, O'Connor CM, Januzzi JL, Desai NR, Ahmad T. The Impact of Depression on Outcomes in Patients With Heart Failure and Reduced Ejection Fraction Treated in the GUIDE-IT Trial. Journal Of Cardiac Failure 2021, 27: 1359-1366. PMID: 34166799, DOI: 10.1016/j.cardfail.2021.06.008.Peer-Reviewed Original ResearchConceptsGuideline-directed medical therapyReduced ejection fractionAmino-terminal pro-B-type natriuretic peptide levelsPro-B-type natriuretic peptide levelsGUIDE-IT trialNatriuretic peptide levelsHeart failureEjection fractionClinical outcomesPeptide levelsOptimal guideline-directed medical therapyCox proportional hazards regression modelingProportional hazards regression modelingImpact of depressionHistory of depressionCardiovascular deathCause hospitalizationCause mortalityOverall cohortMedical therapyAdverse outcomesTarget dosesPatientsMental healthTime pointsSARS-CoV-2 Infection Hospitalization Rate and Infection Fatality Rate Among the Non-Congregate Population in Connecticut
Mahajan S, Caraballo C, Li SX, Dong Y, Chen L, Huston SK, Srinivasan R, Redlich CA, Ko AI, Faust JS, Forman HP, Krumholz HM. SARS-CoV-2 Infection Hospitalization Rate and Infection Fatality Rate Among the Non-Congregate Population in Connecticut. The American Journal Of Medicine 2021, 134: 812-816.e2. PMID: 33617808, PMCID: PMC7895685, DOI: 10.1016/j.amjmed.2021.01.020.Peer-Reviewed Original ResearchConceptsInfection hospitalization rateInfection fatality rateHospitalization ratesFatality rateSeroprevalence estimatesSevere acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibodiesSARS-CoV-2 antibodiesConnecticut Hospital AssociationNon-Hispanic black peopleProportion of deathsCoronavirus disease 2019Total infected individualsTotal hospitalizationsAdverse outcomesNon-congregate settingsHigh burdenDisease 2019Prevalence studyMost subgroupsInfected individualsHospitalizationOlder peopleHospital AssociationConnecticut DepartmentDeath
2020
Clinical implications of differences between real world and clinical trial usage of left ventricular assist devices for end stage heart failure
Mezzacappa C, Ravindra NG, Caraballo C, Chouairi F, Miller PE, Clarke JD, Gruen J, Mori M, McCullough M, Mullan C, Geirsson A, Rogers JG, Anwer M, Desai N, Ahmad T. Clinical implications of differences between real world and clinical trial usage of left ventricular assist devices for end stage heart failure. PLOS ONE 2020, 15: e0242928. PMID: 33270648, PMCID: PMC7714148, DOI: 10.1371/journal.pone.0242928.Peer-Reviewed Original ResearchConceptsClinical trialsVentricular assist deviceExclusion criteriaLVAD recipientsAssist deviceReal-world settingClinical implicationsClinical trial exclusion criteriaHeart failure clinical trialsEnd-stage renal diseaseEnd-stage heart failureReal-world registryRetrospective cohort studyLandmark clinical trialsStage renal diseaseTrial exclusion criteriaRisk of deathStage heart failureRespiratory failureCohort studyPatient characteristicsHeart failurePatient factorsRenal diseaseClinical outcomesDisparities in cholesterol screening among a nationally representative sample of pregnant women in the United States
Mszar R, Mahajan S, Valero-Elizondo J, Grandhi GR, Caraballo C, Gopal DJ, Nemiroff RL, Soffer DE, Cainzos-Achirica M, Sharma G, Nasir K. Disparities in cholesterol screening among a nationally representative sample of pregnant women in the United States. European Journal Of Preventive Cardiology 2020, 29: e11-e13. PMID: 33624106, DOI: 10.1093/eurjpc/zwaa100.Peer-Reviewed Original ResearchCOVID-19 infections and outcomes in a live registry of heart failure patients across an integrated health care system
Caraballo C, McCullough M, Fuery MA, Chouairi F, Keating C, Ravindra NG, Miller PE, Malinis M, Kashyap N, Hsiao A, Wilson FP, Curtis JP, Grant M, Velazquez EJ, Desai NR, Ahmad T. COVID-19 infections and outcomes in a live registry of heart failure patients across an integrated health care system. PLOS ONE 2020, 15: e0238829. PMID: 32997657, PMCID: PMC7526909, DOI: 10.1371/journal.pone.0238829.Peer-Reviewed Original ResearchConceptsHeart failure patientsIntegrated health care systemHeart Failure RegistryHealth care systemFailure patientsCOVID-19 infectionCare systemCOVID-19SARS-CoV-2 infectionReal-time registryRenin-angiotensin blockersRetrospective chart reviewCoronary artery diseaseRisk of deathCOVID-19 testingAngiotensin blockersMultiple comorbiditiesRespiratory failureChart reviewSymptomatic patientsArtery diseaseHeart failureComorbid conditionsPatient mortalityClinical managementSex Differences in Patients Receiving Left Ventricular Assist Devices for End-Stage Heart Failure
Gruen J, Caraballo C, Miller PE, McCullough M, Mezzacappa C, Ravindra N, Mullan CW, Reinhardt SW, Mori M, Velazquez E, Geirsson A, Ahmad T, Desai NR. Sex Differences in Patients Receiving Left Ventricular Assist Devices for End-Stage Heart Failure. JACC Heart Failure 2020, 8: 770-779. PMID: 32653446, DOI: 10.1016/j.jchf.2020.04.015.Peer-Reviewed Original ResearchConceptsAdverse eventsVentricular assist deviceClinical outcomesPotential underuseHigh riskAssist deviceEnd-stage heartWomen 65 yearsRisk of deathContinuous-flow LVADYears of ageAdvanced treatment optionsSex differencesHeart transplantationMultivariable adjustmentHeart failureHeart transplantSimilar incidenceTreatment optionsSimilar riskSurvival analysisLVADPatientsDevice malfunctionWomenRates and Predictors of Patient Underreporting of Hospitalizations During Follow-Up After Acute Myocardial Infarction
Caraballo C, Khera R, Jones PG, Decker C, Schulz W, Spertus JA, Krumholz HM. Rates and Predictors of Patient Underreporting of Hospitalizations During Follow-Up After Acute Myocardial Infarction. Circulation Cardiovascular Quality And Outcomes 2020, 13: e006231. PMID: 32552061, PMCID: PMC9465954, DOI: 10.1161/circoutcomes.119.006231.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionMyocardial infarctionHospitalization eventsMedical recordsLongitudinal multicenter cohort studyMulticenter cohort studyMedical record abstractionDifferent patient characteristicsHealth care eventsPatients' underreportingTRIUMPH registryAccuracy of reportingCohort studyPatient characteristicsRecord abstractionProspective studyClinical studiesClinical investigationHospitalizationPatientsCare eventsInfarctionEvent ratesParticipantsPredictorsPsychiatric Comorbidity and Outcomes After Left Ventricular Assist Device Implantation for End-Stage Heart Failure
Mullan C, Caraballo C, Ravindra NG, Miller PE, McCullough M, Brown K, Aw TW, Gruen J, Clarke JD, Velazquez EJ, Geirsson A, Mori M, Desai NR, Ahmad T. Psychiatric Comorbidity and Outcomes After Left Ventricular Assist Device Implantation for End-Stage Heart Failure. JACC Heart Failure 2020, 8: 569-577. PMID: 32535119, DOI: 10.1016/j.jchf.2020.03.011.Peer-Reviewed Original ResearchConceptsPsychiatric comorbidityMajor psychiatric illnessNarcotic dependencePsychiatric illnessAdverse eventsHeart failureAlcohol abuseKansas City Cardiomyopathy Questionnaire scoreDrug useVentricular assist device implantationEnd-stage heart failureMechanically Assisted Circulatory SupportAssist device implantationEnd-stage heartRisk of rehospitalizationContinuous-flow LVADRisk of mortalityVulnerable patient populationVentricular assist deviceDevice-related infectionsInteragency RegistryLVAD recipientsSpecific psychiatric conditionsClinical outcomesPatient selectionClinical impact of concomitant tricuspid valve procedures during left ventricular assist device implantation
Mullan C, Caraballo C, Ravindra NG, Miller PE, Mori M, McCullough M, Clarke JD, Anwer M, Velazquez EJ, Geirsson A, Desai NR, Ahmad T. Clinical impact of concomitant tricuspid valve procedures during left ventricular assist device implantation. The Journal Of Heart And Lung Transplantation 2020, 39: 926-933. PMID: 32593561, DOI: 10.1016/j.healun.2020.05.007.Peer-Reviewed Original ResearchConceptsConcomitant tricuspid valve proceduresTricuspid valve proceduresSevere tricuspid regurgitationTricuspid regurgitationLVAD implantationValve proceduresLeft ventricular assist device implantationVentricular assist device implantationDegree of TREnd-stage heart failureAssist device implantationRisk of bleedingCases of mildContinuous-flow LVADVentricular assist deviceInteragency RegistryAdult patientsAdverse eventsSurvival benefitHeart failureClinical outcomesDevice implantationTR severityQOL outcomesClinical impact