2024
The extent and burden of high multimorbidity on older adults in the US: a descriptive analysis of Medicare beneficiaries
Dorr D, Markwardt S, Bobo M, Allore H, Botoseneanu A, Newsom J, Nagel C, Quiñones A. The extent and burden of high multimorbidity on older adults in the US: a descriptive analysis of Medicare beneficiaries. BMC Geriatrics 2024, 24: 777. PMID: 39304796, PMCID: PMC11414248, DOI: 10.1186/s12877-024-05329-y.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overChronic DiseaseCost of IllnessFemaleHumansLongitudinal StudiesMaleMedicareMultimorbidityUnited StatesConceptsHigh multimorbidityMultimorbidity levelOlder adultsHigher levels of multimorbidityHealth and Retirement Study dataAssociated with sociodemographic characteristicsWell-being of older adultsLevels of multimorbidityProgression of multimorbidityImpact of multimorbidityBurden of multimorbidityHigher healthcare utilizationRetirement Study dataYounger birth cohortsMultimorbidity groupsHealthcare utilizationLower educationNon-HispanicMultimorbiditySociodemographic characteristicsMedicare beneficiariesSocioeconomic statusHealth indicatorsBirth cohortChronic diseasesRecommendations on Methods for Assessing Multimorbidity Changes Over Time: Aligning the Method to the Purpose
Nagel C, Bishop N, Botoseneanu A, Allore H, Newsom J, Dorr D, Quiñones A. Recommendations on Methods for Assessing Multimorbidity Changes Over Time: Aligning the Method to the Purpose. The Journals Of Gerontology Series A 2024, 79: glae122. PMID: 38742711, PMCID: PMC11163923, DOI: 10.1093/gerona/glae122.Peer-Reviewed Original ResearchConceptsStudy of multimorbidityHealth-related quality of lifeMeasures of multimorbidityEffect of multimorbidityPerson-centered outcomesHealth-related outcomesHealth-related qualityLongitudinal studyQuality of lifeHealth-related dataMultimorbidity researchHealth domainsMultimorbidityLate-lifePeriod of changeAging populationOperationalizing changeLongitudinal analysisLongitudinal changesMore advanced stagesQuantitative studyOutcomesResearch objectHealthPractical issues
2022
Review and evaluation of imputation methods for multivariate longitudinal data with mixed‐type incomplete variables
Cao Y, Allore H, Vander Wyk B, Gutman R. Review and evaluation of imputation methods for multivariate longitudinal data with mixed‐type incomplete variables. Statistics In Medicine 2022, 41: 5844-5876. PMID: 36220138, PMCID: PMC9771917, DOI: 10.1002/sim.9592.Peer-Reviewed Original ResearchMeSH KeywordsBiometryComputer SimulationHumansLongitudinal StudiesModels, StatisticalResearch DesignSoftwareConceptsImputation methodsEfficient imputation methodJoint modelingIntensive computationAccessible softwareData patternsIncomplete longitudinal dataMultivariate longitudinal dataMissing valuesData variablesIncomplete variablesMultivariate distributionsMultiple imputation procedureConditional distributionLinear multilevel modelsHierarchical modelEntire setImputation procedureVariance estimatesMI methodConditional specificationConditional modelSetSoftwareMultiple imputationCatastrophic health expenditure among Chinese adults living alone with cognitive impairment: findings from the CHARLS
Li C, Jin S, Cao X, Han L, Sun N, Allore H, Hoogendijk EO, Xu X, Feng Q, Liu X, Liu Z. Catastrophic health expenditure among Chinese adults living alone with cognitive impairment: findings from the CHARLS. BMC Geriatrics 2022, 22: 640. PMID: 35922775, PMCID: PMC9351200, DOI: 10.1186/s12877-022-03341-8.Peer-Reviewed Original Research
2021
Racial and Ethnic Differences in Multimorbidity Changes Over Time
Quiñones AR, Newsom JT, Elman MR, Markwardt S, Nagel CL, Dorr DA, Allore HG, Botoseneanu A. Racial and Ethnic Differences in Multimorbidity Changes Over Time. Medical Care 2021, 59: 402-409. PMID: 33821829, PMCID: PMC8024615, DOI: 10.1097/mlr.0000000000001527.Peer-Reviewed Original ResearchConceptsMinimal diseaseOlder adultsProspective cohort studyHigher depressive symptomsMultimorbidity combinationsEthnic older adultsCohort studyMultimorbidity patternsLung diseaseHeart diseaseRetirement Study respondentsDelay progressionDepressive symptomsMultimorbidityDiseaseLatent class analysisLatent classesEthnic differencesWhite AmericansStudy respondentsMultinomial logistic modelAdultsClass analysisLogistic modelParticipants
2020
Individual Heterogeneity in the Probability of Hospitalization, Skilled Nursing Facility Admission, and Mortality
McAvay GJ, Vander Wyk B, Allore H. Individual Heterogeneity in the Probability of Hospitalization, Skilled Nursing Facility Admission, and Mortality. The Journals Of Gerontology Series A 2020, 76: 1668-1677. PMID: 33320184, PMCID: PMC8361334, DOI: 10.1093/gerona/glaa314.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overChronic DiseaseFemaleHospitalizationHumansLongitudinal StudiesMaleMultimorbidityProbabilitySkilled Nursing FacilitiesUnited StatesConceptsSkilled nursing facility admissionsNursing facility admissionsChronic kidney diseaseHeart failureFacility admissionKidney diseaseChronic conditionsChronic obstructive pulmonary diseaseObstructive pulmonary diseaseIschemic heart diseaseHealth care utilizationProbability of hospitalizationPulmonary diseaseCare utilizationMortality outcomesPoor outcomeHeart diseaseNational HealthOdds ratioDisease combinationsLongitudinal cohortSociodemographic factorsMedicaid ServicesDiseaseAging Study
2015
Comparing clinical outcomes in HIV‐infected and uninfected older men hospitalized with community‐acquired pneumonia
Barakat LA, Juthani-Mehta M, Allore H, Trentalange M, Tate J, Rimland D, Pisani M, Akgün KM, Goetz MB, Butt AA, Rodriguez-Barradas M, Duggal M, Crothers K, Justice AC, Quagliarello VJ. Comparing clinical outcomes in HIV‐infected and uninfected older men hospitalized with community‐acquired pneumonia. HIV Medicine 2015, 16: 421-430. PMID: 25959543, PMCID: PMC5015437, DOI: 10.1111/hiv.12244.Peer-Reviewed Original ResearchConceptsCommunity-acquired pneumoniaVeterans Aging Cohort StudyVACS IndexCAP outcomesAntiretroviral therapyOlder adultsHigher VACS indexDays of dischargeAging Cohort StudyUninfected participantsCohort studyMean LOSHIV infectionLonger LOSClinical outcomesUnadjusted analysesUninfected groupMultivariable modelEligibility criteriaHIVMale veteransMortality rateART useMortalityOutcomesLongitudinal average attributable fraction as a method for studying time-varying conditions and treatments on recurrent self-rated health: the case of medications in older adults with multiple chronic conditions
Allore HG, Zhan Y, Tinetti M, Trentalange M, McAvay G. Longitudinal average attributable fraction as a method for studying time-varying conditions and treatments on recurrent self-rated health: the case of medications in older adults with multiple chronic conditions. Annals Of Epidemiology 2015, 25: 681-686.e4. PMID: 26033374, PMCID: PMC4547873, DOI: 10.1016/j.annepidem.2015.03.022.Peer-Reviewed Original Research
2014
A dynamic trajectory class model for intensive longitudinal categorical outcome
Lin H, Han L, Peduzzi PN, Murphy TE, Gill TM, Allore HG. A dynamic trajectory class model for intensive longitudinal categorical outcome. Statistics In Medicine 2014, 33: 2645-2664. PMID: 24519416, PMCID: PMC4145078, DOI: 10.1002/sim.6109.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAged, 80 and overComputer SimulationFemaleHumansLinear ModelsLongitudinal StudiesMaleProbabilityProspective Studies
2013
Dynamics of functional aging based on latent-class trajectories of activities of daily living
Han L, Allore H, Murphy T, Gill T, Peduzzi P, Lin H. Dynamics of functional aging based on latent-class trajectories of activities of daily living. Annals Of Epidemiology 2013, 23: 87-92. PMID: 23305692, PMCID: PMC3558979, DOI: 10.1016/j.annepidem.2012.11.010.Peer-Reviewed Original ResearchConceptsDaily livingFunctional agingCommunity-living adultsEquation Poisson modelsMost older adultsADL disabilityHigher disabilityPersistent disabilitySubstantial morbidityInstrumental ADLADL independenceDisability trajectoriesLatent class trajectoriesCumulative burdenRestricted activityLow burdenSevere disabilityMorbidityPredominant trajectoriesOlder adultsDisabilityTime trendsFunctional autonomyADLGrowth mixture models
2012
Contribution of Individual Diseases to Death in Older Adults with Multiple Diseases
Tinetti ME, McAvay GJ, Murphy TE, Gross CP, Lin H, Allore HG. Contribution of Individual Diseases to Death in Older Adults with Multiple Diseases. Journal Of The American Geriatrics Society 2012, 60: 1448-1456. PMID: 22734792, PMCID: PMC3419332, DOI: 10.1111/j.1532-5415.2012.04077.x.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCause of DeathComorbidityFemaleGeriatricsHumansLongitudinal StudiesMaleConceptsOlder adultsSingle underlying causeRespiratory diseaseMedicare Current Beneficiary Survey participantsChronic lower respiratory diseasesUnderlying causeAcute kidney injuryLower respiratory diseaseAverage attributable fractionKidney injuryHazard ratioHeart failureLiver diseaseAcute eventMyocardial infarctionUnintentional injuriesAcute diseaseAttributable fractionNational representative sampleMedicare beneficiariesOlder adults' experiencesDiseaseIndividual diseasesDeathConfidence intervalsA method for partitioning the attributable fraction of multiple time-dependent coexisting risk factors for an adverse health outcome.
Lin H, Allore HG, McAvay G, Tinetti ME, Gill TM, Gross CP, Murphy TE. A method for partitioning the attributable fraction of multiple time-dependent coexisting risk factors for an adverse health outcome. American Journal Of Public Health 2012, 103: 177-82. PMID: 22515873, PMCID: PMC3518339, DOI: 10.2105/ajph.2011.300458.Peer-Reviewed Original ResearchConceptsHealth outcomesAttributable fraction methodPrecipitating Events ProjectAdverse health outcomesMultiple diseasesAcute episodeNew onsetHeart failureAdverse outcomesRisk factorsAttributable fractionNew Haven CountyDiseaseIndividual diseasesOlder adultsOutcomesAdditive effectDeathEvent outcomesOnsetPneumoniaCohort
2011
Bayesian hierarchical modeling for a non‐randomized, longitudinal fall prevention trial with spatially correlated observations
Murphy TE, Allore HG, Leo‐Summers L, Carlin BP. Bayesian hierarchical modeling for a non‐randomized, longitudinal fall prevention trial with spatially correlated observations. Statistics In Medicine 2011, 30: 522-530. PMID: 21294148, PMCID: PMC3477673, DOI: 10.1002/sim.3912.Peer-Reviewed Original ResearchMeSH KeywordsAccidental FallsAgedAged, 80 and overAlgorithmsBayes TheoremComputer SimulationConnecticutControlled Clinical Trials as TopicEmergency Medical ServicesFemaleHumansLongitudinal StudiesMaleMarkov ChainsModels, StatisticalMonte Carlo MethodPatient Education as TopicPoisson DistributionTreatment OutcomeConceptsNon-randomized designFall prevention trialsPersons 70 yearsCommunity-based health interventionsNon-randomized interventionsRandomization of participantsInjurious fallsPrevention trialsEmergency departmentFall preventionInterventional effectsLongitudinal trialCare areasConnecticut CollaborationHealth interventionsInterventional designHealthcare interventionsMedicaid ServicesOlder adultsIntervention areaSerious injuriesZip codesTrialsInterventionInfluential covariates
2010
Treatment of Death in the Analysis of Longitudinal Studies of Gerontological Outcomes
Murphy TE, Han L, Allore HG, Peduzzi PN, Gill TM, Lin H. Treatment of Death in the Analysis of Longitudinal Studies of Gerontological Outcomes. The Journals Of Gerontology Series A 2010, 66A: 109-114. PMID: 21030467, PMCID: PMC3011957, DOI: 10.1093/gerona/glq188.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAgedDeathDisability EvaluationGeriatricsHumansLongitudinal StudiesProportional Hazards ModelsConceptsFunctional disabilityOlder study populationStudy populationLongitudinal studyOlder personsCommunity-living older personsHealthy survivor effectLongitudinal outcomesSurvivor effectFunctional abilityDeathOutcomesDisabilityLongitudinal modelingTreatmentInformative censoringNoninformative censoringRapid declineStrong relationshipCohortPopulationPersonsStudySurvivorsDecedentsTrajectories of Disability in the Last Year of Life
Gill TM, Gahbauer EA, Han L, Allore HG. Trajectories of Disability in the Last Year of Life. New England Journal Of Medicine 2010, 362: 1173-1180. PMID: 20357280, PMCID: PMC2877372, DOI: 10.1056/nejmoa0909087.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAged, 80 and overBayes TheoremCause of DeathDisability EvaluationDisabled PersonsDisease ProgressionHumansLongitudinal StudiesConceptsCourse of disabilityDisability trajectoriesOrgan failureAdvanced dementiaSudden deathOlder personsSevere disabilityCommunity-dwelling older personsTrajectories of disabilityLevel of disabilityCatastrophic disabilityEnd of lifeProgressive disabilityFunctional statusDeath certificatesCommon conditionBaseline assessmentPredominant trajectoriesMonthly interviewsDeathDisabilityLongitudinal studyDementiaFrailtyDecedents
2008
A Semiparametric Transition Model with Latent Traits for Longitudinal Multistate Data
Lin H, Guo Z, Peduzzi PN, Gill TM, Allore HG. A Semiparametric Transition Model with Latent Traits for Longitudinal Multistate Data. Biometrics 2008, 64: 1032-1042. PMID: 18355385, PMCID: PMC2784952, DOI: 10.1111/j.1541-0420.2008.01011.x.Peer-Reviewed Original Research