2022
Prolonged use of newly prescribed gabapentin after surgery
Bongiovanni T, Gan S, Finlayson E, Ross J, Harrison JD, Boscardin J, Steinman MA. Prolonged use of newly prescribed gabapentin after surgery. Journal Of The American Geriatrics Society 2022, 70: 3560-3569. PMID: 36000860, PMCID: PMC9771946, DOI: 10.1111/jgs.18005.Peer-Reviewed Original ResearchConceptsUse of gabapentinProlonged useOpioid useNon-opioid pain medicationsHigher Charlson comorbidity scoreOlder adultsPostoperative opioid prescribingProlonged opioid useCharlson comorbidity scoreLength of stayAdverse drug eventsTotal hip replacementLogistic regression modelsGabapentinoid useMore comorbiditiesComorbidity scoreGabapentin useOpioid prescribingOpioid prescriptionsDischarge dispositionEmergency surgeryPain medicationPatient characteristicsPrimary outcomeMultivariable analysis
2021
Loneliness, sadness, and feelings of social disconnection in older adults during the COVID‐19 pandemic
Holaday LW, Oladele CR, Miller SM, Dueñas MI, Roy B, Ross JS. Loneliness, sadness, and feelings of social disconnection in older adults during the COVID‐19 pandemic. Journal Of The American Geriatrics Society 2021, 70: 329-340. PMID: 34850379, PMCID: PMC8896574, DOI: 10.1111/jgs.17599.Peer-Reviewed Original ResearchConceptsPrimary careMedicare beneficiariesMultivariable logistic regression modelCOVID-19 pandemicOlder adultsOlder Medicare beneficiariesFeelings of lonelinessHistory of depressionPublic health measuresCross-sectional analysisLogistic regression modelsRace/ethnicitySubsequent morbidityLower oddsBlack beneficiariesHealth measuresSocial disconnectionSociodemographic variablesComparison of Diabetes Medications Used by Adults With Commercial Insurance vs Medicare Advantage, 2016 to 2019
McCoy RG, Van Houten HK, Deng Y, Mandic PK, Ross JS, Montori VM, Shah ND. Comparison of Diabetes Medications Used by Adults With Commercial Insurance vs Medicare Advantage, 2016 to 2019. JAMA Network Open 2021, 4: e2035792. PMID: 33523188, PMCID: PMC7851726, DOI: 10.1001/jamanetworkopen.2020.35792.Peer-Reviewed Original ResearchConceptsSodium-glucose cotransporter 2 inhibitorsDipeptidyl peptidase-4 inhibitorsCommercial insurance beneficiariesMedicare Advantage beneficiariesDPP-4i treatmentGLP-1RAsType 2 diabetesInsurance beneficiariesMedicare AdvantageGlucose levelsGlucagonlike Peptide-1 Receptor AgonistsPeptide-1 receptor agonistsHealth plansCommercial health insurance plansGLP-1RA treatmentRetrospective cohort studyCotransporter 2 inhibitorsInitiation of treatmentPeptidase-4 inhibitorsLow-income patientsSeparate logistic regression modelsAdministrative claims dataCommercial health plansAdjusted annual rateLogistic regression models
2018
Emergency Department Volume and Outcomes for Patients After Chest Pain Assessment
Ko DT, Dattani ND, Austin PC, Schull MJ, Ross JS, Wijeysundera HC, Tu JV, Eberg M, Koh M, Krumholz HM. Emergency Department Volume and Outcomes for Patients After Chest Pain Assessment. Circulation Cardiovascular Quality And Outcomes 2018, 11: e004683. PMID: 30354285, DOI: 10.1161/circoutcomes.118.004683.Peer-Reviewed Original ResearchConceptsAcute coronary syndromeChest painHigh-volume EDsCoronary syndromeED volumeVolume thresholdCardiac medication useChest pain assessmentLower adverse outcomesEmergency department visitsAdjusted odds ratioPopulation-based dataProcess of carePotential confounding variablesHigher ED volumesHierarchical logistic regression modelsLogistic regression modelsEmergency department volumeCause deathCardiac testingComposite outcomeDepartment visitsDiabetes mellitusMedication usePrimary outcome
2015
Differences in Colonoscopy Quality Among Facilities: Development of a Post-Colonoscopy Risk-Standardized Rate of Unplanned Hospital Visits
Ranasinghe I, Parzynski CS, Searfoss R, Montague J, Lin Z, Allen J, Vender R, Bhat K, Ross JS, Bernheim S, Krumholz HM, Drye EE. Differences in Colonoscopy Quality Among Facilities: Development of a Post-Colonoscopy Risk-Standardized Rate of Unplanned Hospital Visits. Gastroenterology 2015, 150: 103-113. PMID: 26404952, DOI: 10.1053/j.gastro.2015.09.009.Peer-Reviewed Original ResearchConceptsUnplanned hospital visitsDay of colonoscopyHospital visitsOutpatient facilitiesColonoscopy qualityHealthcare costsRisk-standardized ratesHospital outpatient departmentsUtilization Project dataAmbulatory surgery centersLogistic regression modelsHierarchical logistic regressionQuality improvement effortsPrior arrhythmiaAbdominal painElectrolyte imbalanceOutpatient departmentSurgery centersCommon causeHospital careOutcome measuresPsychiatric disordersColonoscopyUtilization ProjectPatient choice
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
2010
Hospital Volume and 30-Day Mortality for Three Common Medical Conditions
Ross JS, Normand SL, Wang Y, Ko DT, Chen J, Drye EE, Keenan PS, Lichtman JH, Bueno H, Schreiner GC, Krumholz HM. Hospital Volume and 30-Day Mortality for Three Common Medical Conditions. New England Journal Of Medicine 2010, 362: 1110-1118. PMID: 20335587, PMCID: PMC2880468, DOI: 10.1056/nejmsa0907130.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionHospital volumeHeart failureMyocardial infarctionVolume thresholdRisk factorsAnnual hospital volumeHigh-volume hospitalsPatient risk factorsOdds of deathCommon medical conditionsAcute care hospitalsMedicare administrative claimsHierarchical logistic regression modelsCross-sectional analysisLogistic regression modelsCare hospitalHospital characteristicsReduced oddsMedical conditionsAdministrative claimsInfarctionPatientsPneumoniaService beneficiaries
2008
An Administrative Claims Measure Suitable for Profiling Hospital Performance on the Basis of 30-Day All-Cause Readmission Rates Among Patients With Heart Failure
Keenan PS, Normand SL, Lin Z, Drye EE, Bhat KR, Ross JS, Schuur JD, Stauffer BD, Bernheim SM, Epstein AJ, Wang Y, Herrin J, Chen J, Federer JJ, Mattera JA, Wang Y, Krumholz HM. An Administrative Claims Measure Suitable for Profiling Hospital Performance on the Basis of 30-Day All-Cause Readmission Rates Among Patients With Heart Failure. Circulation Cardiovascular Quality And Outcomes 2008, 1: 29-37. PMID: 20031785, DOI: 10.1161/circoutcomes.108.802686.Peer-Reviewed Original ResearchConceptsRisk-standardized readmission ratesCause readmission rateReadmission ratesHeart failureHospital-level readmission ratesAdjusted readmission ratesAdministrative Claims MeasureUnadjusted readmission ratesHeart failure patientsHospital risk-standardized readmission ratesMedical record dataProfiling Hospital PerformanceHierarchical logistic regression modelsUse of MedicareMedical record modelNational Quality ForumLogistic regression modelsCause readmissionClaims-based modelsHospital dischargeFailure patientsC-statisticPreventable eventsPatientsQuality Forum