2025
Vulnerability Index Approach to Identify Pharmacy Deserts and Keystone Pharmacies.
Mathis WS, Berenbrok LA, Kahn PA, Appolon G, Tang S, Hernandez I. Vulnerability Index Approach to Identify Pharmacy Deserts and Keystone Pharmacies. JAMA Netw Open 2025, 8: e250715. PMID: 40080019, DOI: 10.1001/jamanetworkopen.2025.0715.Peer-Reviewed Original Research
2024
Empirically-derived, locally responsive travel time thresholds for optimal geographic supermarket access using national commuting data
Mathis W, Kahn P, Tang S, Berenbrok L, Hernandez I. Empirically-derived, locally responsive travel time thresholds for optimal geographic supermarket access using national commuting data. Journal Of Transport Geography 2024, 118: 103945. DOI: 10.1016/j.jtrangeo.2024.103945.Peer-Reviewed Original ResearchTravel time thresholdFood access researchRural blockSpatial accessibilityNew York CitySparsely populated regionsCommuting dataCensus tractsGeographic accessFood accessSupermarket accessCommunity resourcesUrban centersLos AngelesYork CityAccessibility researchUrban blocksUnited StatesRegional differencesRegion of northern CaliforniaUS DepartmentAccessCensusMethodological advancesGreat PlainsAccessibility of Pulmonary Rehabilitation in the US
Kahn P, Mathis W. Accessibility of Pulmonary Rehabilitation in the US. JAMA Network Open 2024, 7: e2354867. PMID: 38315487, PMCID: PMC10844999, DOI: 10.1001/jamanetworkopen.2023.54867.Peer-Reviewed Original Research
2023
Disparities in travel time to liver transplantation centers in the United States
Ying X, Mathis W, Kahn P, Jesudian A, Fortune B, Brown R. Disparities in travel time to liver transplantation centers in the United States. Liver Transplantation 2023, 30: 326-330. PMID: 37796186, DOI: 10.1097/lvt.0000000000000280.Peer-Reviewed Original ResearchAcute and subacute neurovascular impact of cryptogenic air emboli
Gummerson C, Parasram M, Peng T, Picard J, Kahn P, Angelus E, Bhatt S, de Havenon A, Jasne A, Magid-Bernstein J. Acute and subacute neurovascular impact of cryptogenic air emboli. Surgical Neurology International 2023, 14: 285. PMID: 37680929, PMCID: PMC10481802, DOI: 10.25259/sni_382_2023.Peer-Reviewed Case Reports and Technical NotesMagnetic resonance imagingCortical diffusion restrictionAir emboliMiddle cerebral artery territoryRight anterior cerebral arterySubsequent magnetic resonance imagingDiffusion restrictionClose neurologic monitoringNeurocritical care managementCerebral air embolismAcute ischemic strokeAnterior cerebral arteryInitial radiographic findingsCerebral air emboliType of injuryComputerized tomography scanCourse of careArtery territoryCerebral edemaIschemic strokeNeurologic monitoringCerebral arteryCortical veinsInitial imagingMechanical ventilationAvailability and Accessibility of Live Nonreplicating Smallpox/Mpox Vaccine
Kahn P, Ying X, Virata M, Magahis P, Li S, Mathis W. Availability and Accessibility of Live Nonreplicating Smallpox/Mpox Vaccine. JAMA Network Open 2023, 6: e237873. PMID: 37027158, PMCID: PMC10082399, DOI: 10.1001/jamanetworkopen.2023.7873.Peer-Reviewed Original ResearchTrends in Industry Payments to Cardiologists From 2014 to 2019
Zhang R, Purkayastha S, Ying X, Kahn P, Zhang R, Li S, Qu V, Kini V. Trends in Industry Payments to Cardiologists From 2014 to 2019. Circulation Cardiovascular Quality And Outcomes 2023, 16: e009820. PMID: 36926947, PMCID: PMC11752071, DOI: 10.1161/circoutcomes.122.009820.Peer-Reviewed Original ResearchTravel Times to Facilities Offering Oral Medication Therapy for COVID-19
Kahn P, Ying X, Mathis W. Travel Times to Facilities Offering Oral Medication Therapy for COVID-19. JAMA Network Open 2023, 6: e2249810. PMID: 36595298, PMCID: PMC9857170, DOI: 10.1001/jamanetworkopen.2022.49810.Peer-Reviewed Original Research
2022
Nationwide Emergency Medical Services Guidelines for Care of Ocular Emergencies.
Gardin MA, Wolf BJ, Kahn PA. Nationwide Emergency Medical Services Guidelines for Care of Ocular Emergencies. Ophthalmology 2022, 129: 1332-1333. PMID: 35842191, DOI: 10.1016/j.ophtha.2022.06.043.Peer-Reviewed Original ResearchPharmacy deserts: More than where pharmacies are
Ying X, Kahn P, Mathis WS. Pharmacy deserts: More than where pharmacies are. Journal Of The American Pharmacists Association 2022, 62: 1875-1879. PMID: 35953379, DOI: 10.1016/j.japh.2022.06.016.Peer-Reviewed Original ResearchInnovation and Regulation: The FDA’s Response to the COVID-19 Pandemic
Fenberg R, McKinney E, Kahn P. Innovation and Regulation: The FDA’s Response to the COVID-19 Pandemic. 2022, 179-184. DOI: 10.1007/978-3-030-87978-5_17.Peer-Reviewed Original ResearchRelation of Cigarette Smoking and Heart Failure in Adults ≥65 Years of Age (From the Cardiovascular Health Study)
Gottdiener JS, Buzkova P, Kahn PA, DeFilippi C, Shah S, Barasch E, Kizer JR, Psaty B, Gardin JM. Relation of Cigarette Smoking and Heart Failure in Adults ≥65 Years of Age (From the Cardiovascular Health Study). The American Journal Of Cardiology 2022, 168: 90-98. PMID: 35045935, PMCID: PMC8930705, DOI: 10.1016/j.amjcard.2021.12.021.Peer-Reviewed Original ResearchConceptsHeart failureCurrent smokingCigarette smokingN-terminal pro-brain natriuretic proteinOlder adultsIncident heart failureMultivariable Cox modelAdverse cardiac outcomesC-reactive proteinLeft ventricle systolicCommunity-based studyCross-sectional associationsYears of ageFormer smokingNever smokersSmoking exposureCardiac outcomesDiastolic functionNatriuretic proteinClinical factorsEjection fractionVentricle systolicMyocardial infarctionSystolic strainInterleukin-6Impact of a Medical Clinic Relocation on Travel Time: A Tale of 2 Modes of Transportation
Kahn P, Ying X, Li S, Mathis W. Impact of a Medical Clinic Relocation on Travel Time: A Tale of 2 Modes of Transportation. Journal Of Patient Experience 2022, 9: 23743735221143960. PMID: 36504508, PMCID: PMC9732793, DOI: 10.1177/23743735221143960.Peer-Reviewed Original Research
2021
Characterization of Prescription Patterns and Estimated Costs for Use of Oxygen Concentrators for Home Oxygen Therapy in the US
Kahn PA, Worsham CM, Berland G. Characterization of Prescription Patterns and Estimated Costs for Use of Oxygen Concentrators for Home Oxygen Therapy in the US. JAMA Network Open 2021, 4: e2129967. PMID: 34665242, PMCID: PMC8527353, DOI: 10.1001/jamanetworkopen.2021.29967.Peer-Reviewed Original ResearchIntercountry Differences in Guideline-Directed Medical Therapy and Outcomes Among Patients With Heart Failure
Fuery MA, Chouairi F, Januzzi JL, Moe GW, Caraballo C, McCullough M, Miller PE, Reinhardt SW, Clark K, Oseran A, Milner A, Pacor J, Kahn PA, Singh A, Ravindra N, Guha A, Vadlamani L, Kulkarni NS, Fiuzat M, Felker GM, O'Connor CM, Ahmad T, Ezekowitz J, Desai NR. Intercountry Differences in Guideline-Directed Medical Therapy and Outcomes Among Patients With Heart Failure. JACC Heart Failure 2021, 9: 497-505. PMID: 33992564, DOI: 10.1016/j.jchf.2021.02.011.Peer-Reviewed Original ResearchConceptsGuideline-directed medical therapyGDMT useCountry of enrollmentHeart failureMedical therapyHigher body mass indexKaplan-Meier survival estimatesGUIDE-IT trialHeart failure hospitalizationReduced ejection fractionLog-rank testingMineralocorticoid receptor antagonistsPrimary study endpointBody mass indexPatterns of careCare delivery structuresGUIDE-ITHF hospitalizationFailure hospitalizationUsual careEjection fractionStudy endpointBlack patientsClinical outcomesMass indexGlucagon use by U.S. adults with type 1 and type 2 diabetes
Kahn PA, Liu S, McCoy R, Gabbay RA, Lipska K. Glucagon use by U.S. adults with type 1 and type 2 diabetes. Journal Of Diabetes And Its Complications 2021, 35: 107882. PMID: 33593689, PMCID: PMC8054027, DOI: 10.1016/j.jdiacomp.2021.107882.Peer-Reviewed Original ResearchConceptsType 2 diabetesType 1Emergency healthcare utilizationHigh-risk patientsAmerican Diabetes AssociationType 1 diabetesPrior hypoglycemiaPrescription patternsRisk patientsPrescription ratesHealthcare utilizationDiabetes AssociationDiabetes patientsAdministrative claimsPatientsGlucagon useDiabetesU.S. adultsGlucagonHypoglycemiaOptumLabsMedical Student Patient Outreach to Ensure Continuity of Care During the COVID-19 Pandemic
Belzer A, Yeagle EM, Kohlenberg LK, Solberg M, Gudbranson E, Budge M, Batchelor HM, Fitzpatrick SE, Zhao A, Armengol VD, Hassan SF, Shum M, Bia M, Bia F, Desai NR, Kahn PA. Medical Student Patient Outreach to Ensure Continuity of Care During the COVID-19 Pandemic. Telemedicine Reports 2021, 2: 56-63. PMID: 35720754, PMCID: PMC9049823, DOI: 10.1089/tmr.2020.0030.Peer-Reviewed Educational MaterialsPercent of patientsContinuity of careYale New Haven Health SystemInternal medicine patientsHealth care workersHealth care needsYale New Haven HealthCOVID-19COVID-19 pandemicPublic health emergencyMedicine patientsOutpatient appointmentsCare teamPatient concernsPatient outreachCare needsPatientsCare workersPatient feedbackOutpatient telemedicinePatient commentsPatient communicationProvider responsesHealth systemHealth concernAccuracy of Height Measurement in the Inpatient Setting.
Kahn PA, Cartiera M, Lindop W, Fogerty RL. Accuracy of Height Measurement in the Inpatient Setting. American Journal Of Critical Care 2021, 30: 77-79. PMID: 33385202, DOI: 10.4037/ajcc2021780.Peer-Reviewed Original Research
2020
Reply to Joyce et al.
Kahn PA, Knauert MP. Reply to Joyce et al. Journal Of Sleep Research 2020, 30: e13256. PMID: 33368786, DOI: 10.1111/jsr.13256.Peer-Reviewed Original ResearchGeographical affiliation with top 10 NIH-funded academic medical centers and differences between mortality from cardiovascular disease and cancer
Angraal S, Caraballo C, Kahn P, Bhatnagar A, Singh B, Wilson FP, Fiuzat M, O'Connor CM, Allen LA, Desai NR, Mamtani R, Ahmad T. Geographical affiliation with top 10 NIH-funded academic medical centers and differences between mortality from cardiovascular disease and cancer. American Heart Journal 2020, 230: 54-58. PMID: 32950462, PMCID: PMC7734611, DOI: 10.1016/j.ahj.2020.08.014.Peer-Reviewed Original ResearchConceptsCardiovascular mortality ratesMortality rateCardiovascular mortalityCancer mortalityCardiovascular diseaseMedical CenterIndex groupAnnual cardiovascular mortality rateCardiovascular mortality trendsCancer mortality ratesAcademic medical centerBenefit of patientsMortality trendsSociodemographic characteristicsMortalityIncremental benefitComparison groupNIH fundingImplementation scienceNIHHigh rateDiseaseRapid translationAverage declineResearch priorities
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