2025
Comparing major comorbidity indices as predictors of all-cause mortality in the Veterans Affairs health care system
Beydoun H, Szymkowiak D, Beydoun M, Nixdorff N, Brunner R, Tsai J. Comparing major comorbidity indices as predictors of all-cause mortality in the Veterans Affairs health care system. Journal Of Clinical Epidemiology 2025, 182: 111778. PMID: 40185292, PMCID: PMC12146076, DOI: 10.1016/j.jclinepi.2025.111778.Peer-Reviewed Original ResearchConceptsFunctional Comorbidity IndexUS Department of Veterans AffairsDepartment of Veterans AffairsFunctional Comorbidity Index scoresElixhauser Comorbidity IndexMeasures of comorbidityVeterans AffairsCharlson Comorbidity IndexHarrell's concordance statisticMortality riskNonhomeless veteransVeterans Affairs Health Care SystemComorbidity indexHomeless individualsHigh-risk patient populationVA healthcare servicesHigh riskClinical measuresHealth care servicesHealth care systemLow riskAll-Cause MortalityPatient populationAssociated with homelessnessPredictor of all-cause mortality
2024
Small Observational Study of Battlefield Acupuncture for Homeless-Experienced Veterans
Tsai J, Beydoun H, Howard A, St. Pierre C. Small Observational Study of Battlefield Acupuncture for Homeless-Experienced Veterans. Journal Of Alternative And Complementary Medicine 2024, 30: 1008-1012. PMID: 39007194, DOI: 10.1089/jicm.2023.0749.Peer-Reviewed Original ResearchHomeless-experienced VeteransBattlefield AcupunctureDepartment of Veterans Affairs health care systemVeterans Affairs Health Care SystemU.S. Department of Veterans Affairs health care systemHealth care systemEffects of painLinear growth curve analysesCare systemImprove painSmall observational studiesActivity levelsOne-groupMonths follow-upAcupunctureObservational studyGrowth curve analysisPain scoresVeteransPainFollow-upProspective studyScoresU.S. DepartmentConclusions:</i></bScreening for Hepatocellular Carcinoma and Survival in Patients With Cirrhosis After Hepatitis C Virus Cure
Mezzacappa C, Kim N, Vutien P, Kaplan D, Ioannou G, Taddei T. Screening for Hepatocellular Carcinoma and Survival in Patients With Cirrhosis After Hepatitis C Virus Cure. JAMA Network Open 2024, 7: e2420963. PMID: 38985470, PMCID: PMC11238019, DOI: 10.1001/jamanetworkopen.2024.20963.Peer-Reviewed Original ResearchConceptsHepatitis C virus cureHepatitis C virusAssociated with improved overall survivalHepatocellular carcinoma diagnosisEarly-stage hepatocellular carcinomaImproved overall survivalOverall survivalHepatocellular carcinomaFollow-upHCC screeningCurative treatmentCumulative incidence of hepatocellular carcinomaDirect-acting antiviral (DAA) therapyCohort studyVeterans Affairs Health Care SystemIncidence of hepatocellular carcinomaRisk of hepatocellular carcinomaCohort study of personsHepatitis C virus cirrhosisDiagnosis of hepatocellular carcinomaLikelihood of curative treatmentYears of follow-upHealth care systemHepatocellular carcinoma screeningHCV-related cirrhosis
2023
Veteran Experiences With Suicide Ideation, Suicide Attempt, and Social Support in Safety Planning Within the Department of Veterans Affairs
Matthieu M, Morissette S, Clafferty S, Degutis L, Oliver C, Adkins D, DeBeer B. Veteran Experiences With Suicide Ideation, Suicide Attempt, and Social Support in Safety Planning Within the Department of Veterans Affairs. Military Medicine 2023, 188: e3289-e3294. PMID: 37201198, DOI: 10.1093/milmed/usad144.Peer-Reviewed Original ResearchConceptsVeterans Health AdministrationSuicide attemptsSuicidal ideationVeterans Affairs Health Care SystemSuicide prevention interventionsHealth care facilitiesWarning signsHealth care systemSafety planningSafety planPrevention interventionsRisk veteransCare facilitiesHealth AdministrationDrug useVeterans AffairsSuicide preventionCare systemNegative life eventsPersonal coping strategiesVeteransIdeationSuicide ideationLife eventsSocial supportExcess Mortality Among Patients in the Veterans Affairs Health System Compared With the Overall US Population During the First Year of the COVID-19 Pandemic
Weinberger D, Rose L, Rentsch C, Asch S, Columbo J, King J, Korves C, Lucas B, Taub C, Young-Xu Y, Vashi A, Davies L, Justice A. Excess Mortality Among Patients in the Veterans Affairs Health System Compared With the Overall US Population During the First Year of the COVID-19 Pandemic. JAMA Network Open 2023, 6: e2312140. PMID: 37155169, PMCID: PMC10167568, DOI: 10.1001/jamanetworkopen.2023.12140.Peer-Reviewed Original ResearchConceptsGeneral US populationVA health care systemHealth care systemComprehensive medical careOverall US populationRate of deathVA populationUS populationDeath rateCohort studyExcess mortalityCare systemCOVID-19 pandemicMedical careVeterans Affairs Health Care SystemVeterans Affairs Health SystemHealth systemVA health systemFirst yearVA health careStandardized mortality rateAdult age groupsVA enrolleesMAIN OUTCOMEGeneral populationDevelopment of a Safety Awards Program at a Veterans Affairs Health Care System: A Quality Improvement Initiative
Merchant N. Development of a Safety Awards Program at a Veterans Affairs Health Care System: A Quality Improvement Initiative. Journal Of Clinical Outcomes Management 2023, 30 DOI: 10.12788/jcom.0120.Peer-Reviewed Original ResearchVeterans Affairs Health Care SystemQuality improvement initiativesHealth care systemCare systemImprovement initiatives
2022
Early Adoption of Anti–SARS-CoV-2 Pharmacotherapies Among US Veterans With Mild to Moderate COVID-19, January and February 2022
Bajema K, Wang X, Hynes D, Rowneki M, Hickok A, Cunningham F, Bohnert A, Boyko E, Iwashyna T, Maciejewski M, Viglianti E, Streja E, Yan L, Aslan M, Huang G, Ioannou G. Early Adoption of Anti–SARS-CoV-2 Pharmacotherapies Among US Veterans With Mild to Moderate COVID-19, January and February 2022. JAMA Network Open 2022, 5: e2241434. PMID: 36367727, PMCID: PMC9652752, DOI: 10.1001/jamanetworkopen.2022.41434.Peer-Reviewed Original ResearchConceptsCOVID-19 pharmacotherapySevere COVID-19SARS-CoV-2Health care systemCohort studyRisk factorsCare systemMedical conditionsCOVID-19Positive SARS-CoV-2 testVeterans Affairs Health Care SystemCOVID-19-related hospitalizationCOVID-19-related symptomsLarge integrated health care systemSARS-CoV-2 testVA health care systemIntegrated health care systemNon-Hispanic veteransModerate COVID-19Odds of receiptMultivariable logistic regressionCOVID-19 vaccinationMedical comorbiditiesMedian ageAnti-SARSPenetrance and Pleiotropy of Polygenic Risk Scores for Schizophrenia, Bipolar Disorder, and Depression Among Adults in the US Veterans Affairs Health Care System
Bigdeli TB, Voloudakis G, Barr PB, Gorman BR, Genovese G, Peterson RE, Burstein DE, Velicu VI, Li Y, Gupta R, Mattheisen M, Tomasi S, Rajeevan N, Sayward F, Radhakrishnan K, Natarajan S, Malhotra AK, Shi Y, Zhao H, Kosten TR, Concato J, O’Leary T, Przygodzki R, Gleason T, Pyarajan S, Brophy M, Huang GD, Muralidhar S, Gaziano JM, Aslan M, Fanous AH, Harvey PD, Roussos P, Aslan M, Antonelli M, de Asis M, Bauer M, Brophy M, Concato J, Cunningham F, Freedman R, Gaziano M, Gleason T, Harvey P, Huang G, Kelsoe J, Kosten T, Lehner T, Lohr J, Marder S, Miller P, O Leary T, Patterson T, Peduzzi P, Przygodski R, Siever L, Sklar P, Strakowski S, Zhao H, Fanous A, Farwell W, Malhorta A, Mane S, Palacios P, Bigdeli T, Corsey M, Zaluda L, Johnson J, Sueiro M, Cavaliere D, Jeanpaul V, Maffucci A, Mancini L, Deen J, Muldoon G, Whitbourne S, Canive J, Adamson L, Calais L, Fuldauer G, Kushner R, Toney G, Lackey M, Mank A, Mahdavi N, Villarreal G, Muly E, Amin F, Dent M, Wold J, Fischer B, Elliott A, Felix C, Gill G, Parker P, Logan C, McAlpine J, DeLisi L, Reece S, Hammer M, Agbor-Tabie D, Goodson W, Aslam M, Grainger M, Richtand N, Rybalsky A, Al Jurdi R, Boeckman E, Natividad T, Smith D, Stewart M, Torres S, Zhao Z, Mayeda A, Green A, Hofstetter J, Ngombu S, Scott M, Strasburger A, Sumner J, Paschall G, Mucciarelli J, Owen R, Theus S, Tompkins D, Potkin S, Reist C, Novin M, Khalaghizadeh S, Douyon R, Kumar N, Martinez B, Sponheim S, Bender T, Lucas H, Lyon A, Marggraf M, Sorensen L, Surerus C, Sison C, Amato J, Johnson D, Pagan-Howard N, Adler L, Alerpin S, Leon T, Mattocks K, Araeva N, Sullivan J, Suppes T, Bratcher K, Drag L, Fischer E, Fujitani L, Gill S, Grimm D, Hoblyn J, Nguyen T, Nikolaev E, Shere L, Relova R, Vicencio A, Yip M, Hurford I, Acheampong S, Carfagno G, Haas G, Appelt C, Brown E, Chakraborty B, Kelly E, Klima G, Steinhauer S, Hurley R, Belle R, Eknoyan D, Johnson K, Lamotte J, Granholm E, Bradshaw K, Holden J, Jones R, Le T, Molina I, Peyton M, Ruiz I, Sally L, Tapp A, Devroy S, Jain V, Kilzieh N, Maus L, Miller K, Pope H, Wood A, Meyer E, Givens P, Hicks P, Justice S, McNair K, Pena J, Tharp D, Davis L, Ban M, Cheatum L, Darr P, Grayson W, Munford J, Whitfield B, Wilson E, Melnikoff S, Schwartz B, Tureson M, D Souza D, Forselius K, Ranganathan M, Rispoli L, Sather M, Colling C, Haakenson C, Kruegar D, Muralidhar S, Ramoni R, Breeling J, Chang K, O Donnell C, Tsao P, Moser J, Brewer J, Warren S, Argyres D, Stevens B, Humphries D, Do N, Shayan S, Nguyen X, Pyarajan S, Cho K, Hauser E, Sun Y, Wilson P, McArdle R, Dellitalia L, Harley J, Whittle J. Penetrance and Pleiotropy of Polygenic Risk Scores for Schizophrenia, Bipolar Disorder, and Depression Among Adults in the US Veterans Affairs Health Care System. JAMA Psychiatry 2022, 79: 1092-1101. PMID: 36103194, PMCID: PMC9475441, DOI: 10.1001/jamapsychiatry.2022.2742.Peer-Reviewed Original ResearchDiagnosis of schizophreniaPolygenic risk scoresBipolar disorderHealth care systemElectronic health recordsBilling codesRisk scoreUS Veterans Affairs Health Care SystemClinical InterviewVeterans Health Administration health care systemVeterans Affairs Health Care SystemDisorder-specific genetic factorsVeterans Health Administration electronic health recordsCare systemICD-9/10 codesMajor depression polygenic risk scoresSerious mental illnessEuropean ancestryDepression polygenic risk scoresPhysical health problemsAfrican ancestryUS veteransMajor depressionMillion Veteran ProgramMAIN OUTCOME
2021
Effects of Electroconvulsive Therapy on Suicidal Behavior and Emergency Department Use Among Homeless Veterans: A Propensity Score-Matched Study.
Tsai J, Peltzman T, Watts BV, Shiner B. Effects of Electroconvulsive Therapy on Suicidal Behavior and Emergency Department Use Among Homeless Veterans: A Propensity Score-Matched Study. The Journal Of Clinical Psychiatry 2021, 82 PMID: 34705349, DOI: 10.4088/jcp.21m13935.Peer-Reviewed Original ResearchMeSH KeywordsDiagnostic and Statistical Manual of Mental DisordersElectroconvulsive TherapyEmergency Service, HospitalEmergency Services, PsychiatricFemaleHumansIll-Housed PersonsMaleMedical OveruseMental DisordersMiddle AgedPatient Acceptance of Health CarePatient DischargeSuicidal IdeationSuicide, AttemptedUnited StatesUnited States Department of Veterans AffairsVeteransConceptsElectroconvulsive therapyEmergency department useHomeless veteransDepartment useSuicidal ideationVeterans Affairs Health Care SystemNational VA administrative dataPropensity score-matched studySuicide attemptsFirst ECT sessionVA administrative dataPsychiatric inpatient unitHealth care systemECT sessionsED useAcute servicesInpatient unitTreatment engagementPsychiatric conditionsPropensity scoreSuicidal behaviorCare systemVeteransFurther studiesAdministrative dataDevelopment and Implementation of Multidisciplinary Liver Tumor Boards in the Veterans Affairs Health Care System: A 10-Year Experience
Rabiee A, Taddei T, Aytaman A, Rogal SS, Kaplan DE, Morgan TR. Development and Implementation of Multidisciplinary Liver Tumor Boards in the Veterans Affairs Health Care System: A 10-Year Experience. Cancers 2021, 13: 4849. PMID: 34638333, PMCID: PMC8508370, DOI: 10.3390/cancers13194849.Peer-Reviewed Original ResearchVeterans Affairs Health Care SystemMultidisciplinary liver tumor boardHealth care systemTumor boardCare systemIntegrated health care systemSingle care providerMultidisciplinary tumor boardUnnecessary invasive proceduresVirtual tumor boardsHealth care costsActive therapyVA centersPatient outcomesHepatology careHigher oddsCare providersInvasive proceduresCare costsSignificant heterogeneityCareHealthcare deliveryMortalitySignificant barriersVAFactors Associated With Access to and Receipt of Liver Transplantation in Veterans With End-stage Liver Disease
Kanwal F, Hernaez R, Liu Y, Taylor TJ, Rana A, Kramer JR, Naik AD, Smith D, Taddei T, Asch SM. Factors Associated With Access to and Receipt of Liver Transplantation in Veterans With End-stage Liver Disease. JAMA Internal Medicine 2021, 181: 949-959. PMID: 34028505, PMCID: PMC8145153, DOI: 10.1001/jamainternmed.2021.2051.Peer-Reviewed Original ResearchConceptsEnd-stage liver diseaseAdvanced liver diseaseLiver diseaseLiver transplantationCohort studyMedical recordsOrgan transplantsVeterans Affairs Health Care SystemLower ratesRetrospective cohort studyWait-listed patientsAfrican American patientsComprehensive electronic medical recordsElectronic medical recordsHealth care systemReferral stepsLiver allograftsLiver transplantAdult patientsAlcohol etiologyLow annual incomePatient ageCurative therapyLiver cirrhosisSodium scorePharmacoepidemiology, Machine Learning, and COVID-19: An Intent-to-Treat Analysis of Hydroxychloroquine, With or Without Azithromycin, and COVID-19 Outcomes Among Hospitalized US Veterans
Gerlovin H, Posner DC, Ho YL, Rentsch CT, Tate JP, King JT, Kurgansky KE, Danciu I, Costa L, Linares FA, Goethert ID, Jacobson DA, Freiberg MS, Begoli E, Muralidhar S, Ramoni RB, Tourassi G, Gaziano JM, Justice AC, Gagnon DR, Cho K. Pharmacoepidemiology, Machine Learning, and COVID-19: An Intent-to-Treat Analysis of Hydroxychloroquine, With or Without Azithromycin, and COVID-19 Outcomes Among Hospitalized US Veterans. American Journal Of Epidemiology 2021, 190: 2405-2419. PMID: 34165150, PMCID: PMC8384407, DOI: 10.1093/aje/kwab183.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAnti-Bacterial AgentsAzithromycinCOVID-19COVID-19 Drug TreatmentDrug Therapy, CombinationFemaleHospitalizationHumansHydroxychloroquineIntention to Treat AnalysisMachine LearningMaleMiddle AgedPharmacoepidemiologyRetrospective StudiesSARS-CoV-2Treatment OutcomeUnited StatesVeteransConceptsUS veteransCOVID-19Veterans Affairs Health Care SystemRecent randomized clinical trialsAdministration of hydroxychloroquineEffectiveness of hydroxychloroquineRisk of intubationEffect of hydroxychloroquineElectronic health record dataRandomized clinical trialsTreatment of patientsUS veteran populationCOVID-19 outcomesCoronavirus disease 2019Health record dataRigorous study designsHealth care systemSurvival benefitTreat analysisEarly therapyHospitalized populationClinical trialsObservational studyDisease 2019HydroxychloroquineBenzodiazepine Prescribing from VA and Medicare to Dually Enrolled Older Veterans: A Retrospective Cohort Study
Lei L, Strominger J, Wiechers IR, Kim HM, Blow FC, Bohnert ASB, Min L, Krein SL, Maust DT. Benzodiazepine Prescribing from VA and Medicare to Dually Enrolled Older Veterans: A Retrospective Cohort Study. Journal Of General Internal Medicine 2021, 36: 3689-3696. PMID: 34047924, PMCID: PMC8642498, DOI: 10.1007/s11606-021-06780-y.Peer-Reviewed Original ResearchConceptsBZD prescriptionOlder veteransBZD prescribingHigher oddsPart DVeterans Affairs Health Care SystemRetrospective cohort studyPart D coverageMedicare Part D prescriptionsSubstance use disordersHealth care systemDesignRetrospective cohortPrescription prevalenceQuarterly prevalenceBenzodiazepine prescribingPart D prescriptionsCohort studyPatient characteristicsBZD useUse disordersFacility variationOlder agePrescribingBZDCare system
2020
Antipsychotic Medication Prescriptions for Homeless and Unstably Housed Veterans in the Veterans Affairs Health Care System.
Tsai J, Szymkowiak D, Radhakrishnan R. Antipsychotic Medication Prescriptions for Homeless and Unstably Housed Veterans in the Veterans Affairs Health Care System. The Journal Of Clinical Psychiatry 2020, 82 PMID: 33296148, DOI: 10.4088/jcp.20m13372.Peer-Reviewed Original ResearchConceptsAntipsychotic prescriptionsSevere mental illnessAntipsychotic medicationHealth care systemMedication prescriptionsPrescription practicesMental illnessVeterans Affairs Health Care SystemNational VA administrative dataVeterans AffairsVA health care servicesVA health care systemSecond-generation antipsychotic medicationsCare systemAntipsychotic medication prescriptionMore antipsychotic prescriptionsPsychotropic medication prescriptionsSecond-generation antipsychoticsVA administrative dataMore antipsychotic medicationsHealth care servicesClinical characteristicsClozapine treatmentInjectable medicationsMedicationsUnderutilization of Pulmonary Function Testing in Veterans Hospitalized for Chronic Obstructive Pulmonary Disease Exacerbation: Who are We Missing?
Bade BC, DeRycke EC, Skanderson M, Crothers K, Haskell S, Bean-Mayberry B, Cain HC, Brandt C, Bastian LA, Akgün KM. Underutilization of Pulmonary Function Testing in Veterans Hospitalized for Chronic Obstructive Pulmonary Disease Exacerbation: Who are We Missing? COPD Journal Of Chronic Obstructive Pulmonary Disease 2020, 17: 15-21. PMID: 31948267, DOI: 10.1080/15412555.2019.1711036.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAgedAged, 80 and overAlcoholismDelayed DiagnosisDisease ProgressionEthnicityFemaleHealth Services MisuseHospitalizationHumansLogistic ModelsMaleMiddle AgedOdds RatioPulmonary Disease, Chronic ObstructiveRespiratory Function TestsRetrospective StudiesRisk FactorsSex FactorsSmokersSmokingSubstance-Related DisordersUnited StatesUnited States Department of Veterans AffairsVeteransConceptsChronic obstructive pulmonary diseasePulmonary function testingDrug use disordersCurrent Procedural TerminologyUse disordersFunction testingChronic obstructive pulmonary disease exacerbationsVeterans Affairs Health Care SystemObstructive pulmonary disease exacerbationsLogistic regressionPulmonary disease exacerbationsObstructive pulmonary diseaseHistory of alcoholHealth care systemDisease exacerbationIndex hospitalizationCurrent smokersCOPD hospitalizationsPatient factorsPrimary outcomePulmonary diseaseRetrospective analysisInternational ClassificationMost veteransQuality care
2019
Experiences and Knowledge of US Department of Veterans Affairs Clinical Services, Research, and Education: Results From a National Survey of Veterans
Tsai J, Mehta K, Hunt-Johnson N, Pietrzak RH. Experiences and Knowledge of US Department of Veterans Affairs Clinical Services, Research, and Education: Results From a National Survey of Veterans. Journal Of Public Health Management And Practice 2019, 27: 173-185. PMID: 31592984, DOI: 10.1097/phh.0000000000001053.Peer-Reviewed Original ResearchConceptsPrimary health care providersOpioid use disorderVA health careHealth care providersClinical servicesChronic painCare providersUse disordersVA servicesVeterans Affairs Health Care SystemHealth careHealth care systemOverall high satisfactionMajority of veteransOne-quarterUS veteransComprehensive careVeteran characteristicsEligibility criteriaPsychosocial characteristicsCare systemVeteransComprehensive managementCareActive dutyCharacteristics of Patients With Professional Guardians in the Department of Veterans Affairs Health Care System.
Cohen AB, Trentalange M, Benjamin AZ, Fried TR. Characteristics of Patients With Professional Guardians in the Department of Veterans Affairs Health Care System. JAMA Internal Medicine 2019, 179: 107-108. PMID: 30398533, PMCID: PMC6500761, DOI: 10.1001/jamainternmed.2018.4849.Peer-Reviewed Original Research
2018
Delivering a “New Deal” of Kidney Health Opportunities to Improve Outcomes Within the Veterans Health Administration
Crowley ST, Murphy K. Delivering a “New Deal” of Kidney Health Opportunities to Improve Outcomes Within the Veterans Health Administration. American Journal Of Kidney Diseases 2018, 72: 444-450. PMID: 29627134, DOI: 10.1053/j.ajkd.2018.01.056.Peer-Reviewed Original ResearchConceptsIntegrated health care delivery systemChronic kidney diseaseKidney diseaseKidney healthVeterans Affairs Health Care SystemKidney health outcomesVeterans Health AdministrationHealth of veteransPrimary care platformsHealth care delivery systemCare delivery systemHealth care delivery reformHealth care coverageHealth care systemNephrology careInvisible illnessHealth AdministrationHealth outcomesHealth servicesCare coverageHealth systemDiseaseCare systemComprehensive health care coverageHealth opportunitiesImpact of E-cigarettes on Smoking and Related Outcomes in Veteran Smokers With Psychiatric Comorbidity
Valentine GW, Hefner K, Jatlow PI, Rosenheck RA, Gueorguieva R, Sofuoglu M. Impact of E-cigarettes on Smoking and Related Outcomes in Veteran Smokers With Psychiatric Comorbidity. Journal Of Dual Diagnosis 2018, 14: 2-13. PMID: 29083287, PMCID: PMC7131866, DOI: 10.1080/15504263.2017.1384877.Peer-Reviewed Original ResearchConceptsE-cigarette usePsychiatric comorbidityCombustible cigarette useE-cigarettesVeteran smokersQuit ratesNicotine dependenceCigarette useVeterans Affairs Health Care SystemAlveolar carbon monoxide levelsOpen-label studySerious adverse eventsSmoking-related deathsFrequent e-cigarette useMain outcome measuresNumber of cigarettesOne-month followEvidence-based treatmentsTobacco-related harmSubstance use disordersGeneral U.S. populationLower quit ratesNicotine delivery systemsCombustible tobacco useHealth care system
2017
Racial and Ethnic Differences in Total Knee Arthroplasty in the Veterans Affairs Health Care System, 2001–2013
Hausmann LRM, Brandt CA, Carroll CM, Fenton BT, Ibrahim SA, Becker WC, Burgess DJ, Wandner LD, Bair MJ, Goulet JL. Racial and Ethnic Differences in Total Knee Arthroplasty in the Veterans Affairs Health Care System, 2001–2013. Arthritis Care & Research 2017, 69: 1171-1178. PMID: 27788302, PMCID: PMC5538734, DOI: 10.1002/acr.23137.Peer-Reviewed Original ResearchConceptsTotal knee arthroplastyKnee arthroplastyOA diagnosisHispanic-white differencesHispanic veteransVeterans Affairs Health Care SystemTotal knee arthroplasty (TKA) rateCox proportional hazards regressionTotal knee arthroplasty proceduresIncreased clinical severityKnee arthroplasty ratesPotential clinical confoundersPain intensity scoresProportional hazards regressionBody mass indexKnee arthroplasty proceduresEthnic differencesMusculoskeletal disorder diagnosisHealth care systemElectronic health recordsClinical confoundersHazards regressionMass indexRheumatology specialistsClinical severity
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