2023
Metformin prescription for U.S. veterans with prediabetes, 2010–2019
Gulanski B, Goulet J, Radhakrishnan K, Ko J, Li Y, Rajeevan N, Lee K, Heberer K, Lynch J, Streja E, Mutalik P, Cheung K, Concato J, Shih M, Lee J, Aslan M. Metformin prescription for U.S. veterans with prediabetes, 2010–2019. Journal Of Investigative Medicine 2023, 72: 139-150. PMID: 37668313, DOI: 10.1177/10815589231201141.Peer-Reviewed Original ResearchConceptsBody mass indexVeterans Health AdministrationIncident prediabetesHigh riskHealth AdministrationRetrospective observational cohort studyType 2 diabetes mellitusUse of metforminObservational cohort studyProportion of veteransMetformin prescribingGestational diabetesCohort studyMetformin prescriptionDiabetes mellitusDiabetes preventionMass indexCardiovascular diseaseMultivariable modelPrediabetesSubset of individualsMetforminU.S. veteransHealthcare systemVeteransDecisions on Non-oncology Breakthrough Therapy Designation Requests in 2017–2019
Poddar A, Raggio M, Concato J. Decisions on Non-oncology Breakthrough Therapy Designation Requests in 2017–2019. Therapeutic Innovation & Regulatory Science 2023, 58: 214-221. PMID: 37926768, PMCID: PMC10764372, DOI: 10.1007/s43441-023-00589-z.Peer-Reviewed Original ResearchConceptsBreakthrough therapy statusTherapy statusInsufficient treatment effectNon-oncology drugsReview of requestsUnmet medical needInadequate study designBreakthrough therapy designationConclusionsThis analysisCommon reasonInvestigational drugsUS FoodMedical needOrphan diseaseStudy designDrug evaluationMarketing approvalCorresponding drugsDrugsApproval statusTreatment effectsDrug developmentFDA processDesignation programStatusGenome-wide association studies and cross-population meta-analyses investigating short and long sleep duration
Austin-Zimmerman I, Levey D, Giannakopoulou O, Deak J, Galimberti M, Adhikari K, Zhou H, Denaxas S, Irizar H, Kuchenbaecker K, McQuillin A, Concato J, Buysse D, Gaziano J, Gottlieb D, Polimanti R, Stein M, Bramon E, Gelernter J. Genome-wide association studies and cross-population meta-analyses investigating short and long sleep duration. Nature Communications 2023, 14: 6059. PMID: 37770476, PMCID: PMC10539313, DOI: 10.1038/s41467-023-41249-y.Peer-Reviewed Original ResearchConceptsAssociation studiesGenome-wide association studiesGenetic correlationsWide association studyLinkage disequilibrium scorePositive genetic correlationSleep traitsIndependent lociMillion Veteran ProgramTraitsAncestryUK BiobankVeteran ProgramMendelian randomisationLociHeritabilitySNPsPhenotypeEast AsiansSimilar patternCardiometabolic phenotypes
2020
Randomized, observational, interventional, and real‐world—What's in a name?
Concato J, Stein P, Dal Pan G, Ball R, Corrigan‐Curay J. Randomized, observational, interventional, and real‐world—What's in a name? Pharmacoepidemiology And Drug Safety 2020, 29: 1514-1517. PMID: 32940401, DOI: 10.1002/pds.5123.Peer-Reviewed Original Research
2015
Million Veteran Program: A mega-biobank to study genetic influences on health and disease
Gaziano JM, Concato J, Brophy M, Fiore L, Pyarajan S, Breeling J, Whitbourne S, Deen J, Shannon C, Humphries D, Guarino P, Aslan M, Anderson D, LaFleur R, Hammond T, Schaa K, Moser J, Huang G, Muralidhar S, Przygodzki R, O'Leary TJ. Million Veteran Program: A mega-biobank to study genetic influences on health and disease. Journal Of Clinical Epidemiology 2015, 70: 214-223. PMID: 26441289, DOI: 10.1016/j.jclinepi.2015.09.016.Peer-Reviewed Original ResearchConceptsMillion Veteran ProgramVeterans Affairs Health Care SystemObservational cohort studyVA electronic health recordVeteran ProgramHealth care deliverySelf-reported raceHealth care systemElectronic health recordsCohort studyAfrican American populationBlood samplesPeer-reviewed research studiesCare deliveryClinical decisionGenetic testingStudy designRecruiting sitesCare systemHealth recordsMost participantsPrecision medicineGenetic influencesAmerican populationParticipants
2013
Study Design and “Evidence” in Patient-oriented Research
Concato J. Study Design and “Evidence” in Patient-oriented Research. American Journal Of Respiratory And Critical Care Medicine 2013, 187: 1167-1172. PMID: 23725613, DOI: 10.1164/rccm.201303-0521oe.Peer-Reviewed Original ResearchConceptsRandomized trialsObservational studyPatient-oriented researchStudy designCritical care literatureEvidence-based medicineGeneral medicalCause-effect associationClinical careGold standard statusComparative effectivenessEvidence baseTrialsCare literatureIndividual studiesPatientsStudy resultsResearch designStudyMethodological designCareEvidence approachProbability, uncertainty, and prostate cancer.
Concato J. Probability, uncertainty, and prostate cancer. Annals Of Internal Medicine 2013, 158: 211-212. PMID: 23381041, DOI: 10.7326/0003-4819-158-3-201302050-00012.Peer-Reviewed Original Research
2010
Observational Methods in Comparative Effectiveness Research
Concato J, Lawler EV, Lew RA, Gaziano JM, Aslan M, Huang GD. Observational Methods in Comparative Effectiveness Research. The American Journal Of Medicine 2010, 123: e16-e23. PMID: 21184862, DOI: 10.1016/j.amjmed.2010.10.004.Peer-Reviewed Original ResearchConceptsComparative effectiveness researchObservational studyGroup of patientsVeterans Health AdministrationEffectiveness researchSpecific medical conditionsPatient-oriented researchCorresponding study designPatient populationTreatment optionsMedical conditionsHealth AdministrationStudy designMedical ailmentsIndividual studiesAvailable optionsPatientsRCTsOptionsProminent featureStudyAdministrationTrials
2006
The Effectiveness of Screening for Prostate Cancer: A Nested Case-Control Study
Concato J, Wells CK, Horwitz RI, Penson D, Fincke G, Berlowitz DR, Froehlich G, Blake D, Vickers MA, Gehr GA, Raheb NH, Sullivan G, Peduzzi P. The Effectiveness of Screening for Prostate Cancer: A Nested Case-Control Study. JAMA Internal Medicine 2006, 166: 38-43. PMID: 16401808, DOI: 10.1001/archinte.166.1.38.Peer-Reviewed Original ResearchConceptsDigital rectal examinationCase-control studyCause-specific mortalityCase patientsProstate cancerControl patientsNested Case-Control StudyProstate-specific antigen (PSA) testVeterans Affairs Medical CenterAssociation of screeningBenefits of screeningEffectiveness of screeningVeterans Affairs facilitiesVerbal informed consentEffectiveness of PSADRE screeningCause mortalityPSA testingSurvival benefitRectal examinationAntigen testMedical CenterAmbulatory carePatientsClinical practice
2005
Diagnosis, Evaluation, and Treatment of Childhood Obesity in Pediatric Practice
Dorsey KB, Wells C, Krumholz HM, Concato J. Diagnosis, Evaluation, and Treatment of Childhood Obesity in Pediatric Practice. JAMA Pediatrics 2005, 159: 632-638. PMID: 15996996, DOI: 10.1001/archpedi.159.7.632.Peer-Reviewed Original ResearchConceptsBody mass indexRisk of overweightHospital-based clinicsHealth maintenance visitsRate of diagnosisType of treatmentComorbid diseasesMass indexOverweight childrenChildhood obesityMedical recordsTreatment recommendationsHigh burdenPediatric practiceRoutine screeningOverweightClinical practiceMaintenance visitsDiagnosisEncounter notesFormal diagnosisTreatmentChildrenSingle-parent householdsRiskPredicting which patients can resume oral nutrition after percutaneous endoscopic gastrostomy tube placement
Naik A, Abraham N, Roche V, Concato J. Predicting which patients can resume oral nutrition after percutaneous endoscopic gastrostomy tube placement. Alimentary Pharmacology & Therapeutics 2005, 21: 1155-1161. PMID: 15854179, DOI: 10.1111/j.1365-2036.2005.02464.x.Peer-Reviewed Original ResearchConceptsPercutaneous endoscopic gastrostomy placementEndoscopic gastrostomy placementOral nutritionGastrostomy placementTube removalNeck cancerLocalized headPercutaneous endoscopic gastrostomy (PEG) tube placementPercutaneous endoscopic gastrostomy removalBivariate analysisClinical goalsEndoscopic gastrostomy tube placementPercutaneous endoscopic gastrostomy tubeTemporary nutritional supportBaseline clinical characteristicsObservational cohort studyPotential clinical predictorsGastrostomy tube placementProportional hazards modelVariety of indicationsGastrostomy removalClinical characteristicsOlder patientsSerum creatinineClinical predictors
2003
Hyperglycaemia in patients with acute ischaemic stroke: how often do we screen for undiagnosed diabetes?
Bravata D, Kim N, Concato J, Brass L. Hyperglycaemia in patients with acute ischaemic stroke: how often do we screen for undiagnosed diabetes? QJM 2003, 96: 491-497. PMID: 12881591, DOI: 10.1093/qjmed/hcg087.Peer-Reviewed Original ResearchConceptsAcute ischemic strokeStroke patientsIschemic strokeUndiagnosed diabetesAcute ischemic stroke patientsOral glucose tolerance testingRetrospective medical record reviewPrevalence of hyperglycaemiaAcute stroke patientsAssociation of diabetesIschemic stroke patientsAcute stroke eventsGlucose tolerance testingMedical record reviewModifiable conditionsDiabetes mellitusHemoglobin A1cHyperglycaemic patientsStroke eventsPrior diagnosisRecord reviewPrevious diagnosisClinicians screenConnecticut hospitalsTolerance testing
2002
The Health–Related Effects of Alcohol Use in Older Persons: A Systematic Review
Reid M, Boutros N, O'Connor P, Cadariu A, Concato J. The Health–Related Effects of Alcohol Use in Older Persons: A Systematic Review. Substance Abuse 2002, 23: 149-164. PMID: 12444348, DOI: 10.1080/08897070209511485.Peer-Reviewed Original ResearchConceptsCause mortalityCognitive impairmentExposure statusFunctional disabilityAlcohol useOlder adultsFunctional impairmentMiddle-aged adult populationParticipants 60 yearsYears of ageEnglish-language studiesExposure-outcome associationsImportant confounding factorsHealth-related effectsEffects of alcoholMagnitude of riskCohort studySubstantial morbidityPercentage of studiesFormer drinkersProspective studyMean ageAlcohol exposureMethodologic qualityOutcome measures
2001
Risk adjustment for older hospitalized persons A comparison of two methods of data collection for the Charlson index
van Doorn C, Bogardus S, Williams C, Concato J, Towle V, Inouye S. Risk adjustment for older hospitalized persons A comparison of two methods of data collection for the Charlson index. Journal Of Clinical Epidemiology 2001, 54: 694-701. PMID: 11438410, DOI: 10.1016/s0895-4356(00)00367-x.Peer-Reviewed Original ResearchConceptsICD-9 dataCharlson indexMortality predictionComorbid conditionsOlder general medical patientsYale-New Haven HospitalRisk adjustmentOriginal Charlson indexSpecific comorbid conditionsGeneral medical patientsGeneral medicine wardsHospital admission dateCharlson scoreIndividual comorbiditiesConsecutive patientsMedicine wardsClinical evidenceMedical patientsAdmission dateChart-based dataMortality riskICD-9PatientsChart dataLow agreementA nested case–control study of the effectiveness of screening for prostate cancer research design
Concato J, Peduzzi P, Kamina A, Horwitz R. A nested case–control study of the effectiveness of screening for prostate cancer research design. Journal Of Clinical Epidemiology 2001, 54: 558-564. PMID: 11377115, DOI: 10.1016/s0895-4356(00)00355-3.Peer-Reviewed Original ResearchInjury related infant death: the impact of race and birth weight
Jain A, Khoshnood B, Lee K, Concato J. Injury related infant death: the impact of race and birth weight. Injury Prevention 2001, 7: 135. PMID: 11428561, PMCID: PMC1730711, DOI: 10.1136/ip.7.2.135.Peer-Reviewed Original ResearchConceptsLow birthweight babiesBirth weightUnintentional injuriesRisk factorsOdds ratioSociodemographic factorsBirthweight babiesRisk of homicideInfant deathHigh riskImportant independent risk factorEffect of raceAfrican AmericansIndependent risk factorPreventable risk factorsAdjusted odds ratioRisk of deathMexican-American infantsLast pregnancyAlcohol intakePrenatal careMaternal ageMaternal raceInfant injuriesInfant's birthChallenges in prognostic analysis
Concato J. Challenges in prognostic analysis. Cancer 2001, 91: 1607-1614. PMID: 11309759, DOI: 10.1002/1097-0142(20010415)91:8+<1607::aid-cncr1174>3.0.co;2-j.Peer-Reviewed Original ResearchPreference for disclosure of information among patients with rheumatoid arthritis
Fraenkel L, Bogardus S, Concato J, Felson D. Preference for disclosure of information among patients with rheumatoid arthritis. Arthritis & Rheumatism 2001, 45: 136-139. PMID: 11324776, DOI: 10.1002/1529-0131(200104)45:2<136::aid-anr165>3.0.co;2-p.Peer-Reviewed Original ResearchConceptsRheumatoid arthritisRA patientsSex-specific analysesSex-specific correlatesInformation preferencesPatient characteristicsTherapeutic optionsFemale sexSide effectsPatientsBivariate analysisHigher education levelCurrent employmentArthritisMean scoreEducation levelAlternative optionRiskFull disclosureOptionsMultiple linear regressionLinear regressionStepwise multiple linear regressionMedicationsRheumatologists
2000
Treatment Decisions for Localized Prostate Cancer
Holmboe E, Concato J. Treatment Decisions for Localized Prostate Cancer. Journal Of General Internal Medicine 2000, 15: 694-701. PMID: 11089712, PMCID: PMC1495597, DOI: 10.1046/j.1525-1497.2000.90842.x.Peer-Reviewed Original ResearchConceptsExternal beam radiationLocalized prostate cancerWatchful waitingProstate cancerRadical prostatectomyTreatment optionsTreatment decisionsCommon reasonPattern of complicationsPrimary care providersRemoval of tumorsLack of evidencePhysician recommendationConsecutive menCare providersHigh riskPatient decisionCancerLonger durationPractice groupMenBeam radiationTreatmentPatientsShort durationRandomized, Controlled Trials, Observational Studies, and the Hierarchy of Research Designs
Concato J, Shah N, Horwitz R. Randomized, Controlled Trials, Observational Studies, and the Hierarchy of Research Designs. New England Journal Of Medicine 2000, 342: 1887-1892. PMID: 10861325, PMCID: PMC1557642, DOI: 10.1056/nejm200006223422507.Peer-Reviewed Original ResearchConceptsCase-control studyObservational studyBacille Calmette-Guérin (BCG) vaccineCalmette-Guérin vaccineRandomized clinical trialsClinical topicsIndividual observational studiesEffect of vaccinationEffect of treatmentMEDLINE data baseActive tuberculosisControlled TrialsPercent confidence intervalsClinical trialsOdds ratioRelative riskSummary estimatesMajor medical journalsSame interventionTrialsResearch designConfidence intervalsHigh gradeTreatment effectsOriginal report