2021
Effects of forced disruption in Medicaid managed care on children with asthma
Piwnica‐Worms K, Staiger B, Ross JS, Rosenthal MS, Ndumele CD. Effects of forced disruption in Medicaid managed care on children with asthma. Health Services Research 2021, 56: 668-676. PMID: 33624290, PMCID: PMC8313960, DOI: 10.1111/1475-6773.13643.Peer-Reviewed Original ResearchConceptsPrimary care providersPersistent asthmaCare plansOutpatient visitsCare utilizationCare administrative claims dataEmergency department utilizationHealth care utilizationAdministrative claims dataIndicators of asthmaProportion of childrenPatients outpatientHealth utilizationAdministrative claimsAsthmaCare providersClaims dataNumber of childrenConsistent associationMedicaidVisitsChildrenOutpatientsPercentage point decreaseEnrollment data
2020
Medicare beneficiaries' out-of-pocket costs for commonly used generic drugs, 2009-2017.
Liu P, Dhruva SS, Shah ND, Ross JS. Medicare beneficiaries' out-of-pocket costs for commonly used generic drugs, 2009-2017. The American Journal Of Managed Care 2020, 26: 112-117. PMID: 32181626, DOI: 10.37765/ajmc.2020.42635.Peer-Reviewed Original ResearchMeSH KeywordsChronic DiseaseDrugs, GenericFinancing, PersonalHumansInsurance Claim ReviewMedicare Part DResidence CharacteristicsRetrospective StudiesUnited StatesConceptsPrescription drug plansPocket costsMedicare prescription drug plansGeneric drugsDrug price transparencyCash pricesPrice transparencyPocket expenditureDiscount programDrug plansDrug discount programsMedicare beneficiariesGeneric drug discount programsBeneficiariesCostGeneric drug prescriptionPricesDrug listGeneric medications
2015
Regional-Level Correlations in Inappropriate Imaging Rates for Prostate and Breast Cancers: Potential Implications for the Choosing Wisely Campaign
Makarov DV, Soulos PR, Gold HT, Yu JB, Sen S, Ross JS, Gross CP. Regional-Level Correlations in Inappropriate Imaging Rates for Prostate and Breast Cancers: Potential Implications for the Choosing Wisely Campaign. JAMA Oncology 2015, 1: 185-194. PMID: 26181021, PMCID: PMC4707944, DOI: 10.1001/jamaoncol.2015.37.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overBreast NeoplasmsCatchment Area, HealthChi-Square DistributionDiagnostic ImagingFemaleGuideline AdherenceHumansLogistic ModelsMaleMedicareMultivariate AnalysisPractice Guidelines as TopicPractice Patterns, Physicians'Predictive Value of TestsProstatic NeoplasmsResidence CharacteristicsRetrospective StudiesRisk FactorsSEER ProgramUnited StatesUnnecessary ProceduresConceptsLow-risk prostate cancerProstate cancerBreast cancerProstate cancer imagingFourth quartileLow-risk breast cancerBreast cancer imagingLow-risk prostateEnd Results-MedicareRetrospective cohort studyMultivariable logistic regressionChoosing Wisely campaignPatient-level analysisAppropriateness of careHospital referral regionsCancer imagingQuality of careInappropriate imagingCohort studyWisely campaignHealth care spendingLowest quartileOdds ratioPatient levelHRR level
2014
Place of Residence and Outcomes of Patients With Heart Failure
Bikdeli B, Wayda B, Bao H, Ross JS, Xu X, Chaudhry SI, Spertus JA, Bernheim SM, Lindenauer PK, Krumholz HM. Place of Residence and Outcomes of Patients With Heart Failure. Circulation Cardiovascular Quality And Outcomes 2014, 7: 749-756. PMID: 25074375, PMCID: PMC5323058, DOI: 10.1161/circoutcomes.113.000911.Peer-Reviewed Original ResearchConceptsNeighborhood socioeconomic statusIndividual socioeconomic statusOutcomes of patientsHeart failureHigher SES neighborhoodsSocioeconomic statusClinical factorsHeart Failure Outcomes trialPrimary end pointPatient-level factorsUS internal medicineCause mortalityCause readmissionMultivariable adjustmentOutcome trialsMedical chartsPatient interviewsLow-SES neighborhoodsCardiology practiceMortality ratePatientsPlace of residenceInternal medicineReadmissionEnd point
2013
Regional Density of Cardiologists and Rates of Mortality for Acute Myocardial Infarction and Heart Failure
Kulkarni VT, Ross JS, Wang Y, Nallamothu BK, Spertus JA, Normand SL, Masoudi FA, Krumholz HM. Regional Density of Cardiologists and Rates of Mortality for Acute Myocardial Infarction and Heart Failure. Circulation Cardiovascular Quality And Outcomes 2013, 6: 352-359. PMID: 23680965, PMCID: PMC5323047, DOI: 10.1161/circoutcomes.113.000214.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overCardiologyCohort StudiesFemaleHealth Services AccessibilityHealth Services Needs and DemandHealthcare DisparitiesHeart FailureHospitalizationHumansLinear ModelsLogistic ModelsMaleMedicareMyocardial InfarctionOdds RatioPhysiciansPneumoniaPrognosisResidence CharacteristicsRisk AssessmentRisk FactorsTime FactorsUnited StatesWorkforceConceptsAcute myocardial infarctionHeart failureHospital referral regionsMortality riskLowest quintileMyocardial infarctionReferral regionsMedicare administrative claims dataCharacteristics of patientsRisk of deathAdministrative claims dataHierarchical logistic regression modelsLogistic regression modelsRate of mortalityRegional densityHighest quintileNumber of cardiologistsWorse outcomesClaims dataPatientsPneumoniaCardiologistsHospitalizationAdmissionQuintile
2012
Association of Chronic Diseases and Impairments With Disability in Older Adults
Hung WW, Ross JS, Boockvar KS, Siu AL. Association of Chronic Diseases and Impairments With Disability in Older Adults. Medical Care 2012, 50: 501-507. PMID: 22584885, PMCID: PMC3353149, DOI: 10.1097/mlr.0b013e318245a0e0.Peer-Reviewed Original ResearchMeSH KeywordsActivities of Daily LivingAgedAgingCardiovascular DiseasesChronic DiseaseCognition DisordersCross-Sectional StudiesDiabetes MellitusDisabled PersonsFemaleHealth SurveysHearing LossHumansHypertensionMaleMobility LimitationResidence CharacteristicsRespiratory Tract DiseasesSelf CareSocioeconomic FactorsUnited StatesVision DisordersConceptsSelf-care disabilityChronic diseasesLung diseaseOlder adultsSelf-care ADLChronic lung diseaseCommunity-dwelling adultsCross-sectional analysisADL disabilityHeart failureHeart diseaseDaily livingHypertensionDiseaseDiabetesImpairmentDisabilityAdultsRetirement StudySpecific disabilitiesAssociationArthritisStrokeCancerADL
2011
Do Imaging Studies Performed in Physician Offices Increase Downstream Utilization? An Empiric Analysis of Cardiac Stress Testing With Imaging
Chen J, Fazel R, Ross JS, McNamara RL, Einstein AJ, Al-Mallah M, Krumholz HM, Nallamothu BK. Do Imaging Studies Performed in Physician Offices Increase Downstream Utilization? An Empiric Analysis of Cardiac Stress Testing With Imaging. JACC Cardiovascular Imaging 2011, 4: 630-637. PMID: 21679898, PMCID: PMC3319749, DOI: 10.1016/j.jcmg.2011.04.003.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAged, 80 and overCardiac CatheterizationChi-Square DistributionEchocardiography, StressEmpirical ResearchFemaleHealthcare DisparitiesHumansInsurance, HealthLogistic ModelsMaleMiddle AgedMyocardial Perfusion ImagingMyocardial RevascularizationOffice VisitsOutpatient Clinics, HospitalPractice Patterns, Physicians'Predictive Value of TestsResidence CharacteristicsTime FactorsUnited StatesYoung AdultConceptsMyocardial perfusion imagingSubsequent myocardial perfusion imagingProportion of patientsStress echocardiographyCardiac catheterizationHospital outpatient settingPhysician's officeOutpatient settingStress testingSubsequent cardiac testingCardiac stress testingDownstream resource utilizationHospital outpatient facilitiesCardiac testingPrivate health insuranceDownstream testingOffice imagingPerfusion imagingCatheterizationImaging studiesOutpatient imagingPatientsHealth insuranceLower ratesHigh rate