2024
Herpes Zoster and Risk of Incident Parkinson's Disease in US Veterans: A Matched Cohort Study
Tunnicliffe L, Weil R, Breuer J, Rodriguez‐Barradas M, Smeeth L, Rentsch C, Warren‐Gash C. Herpes Zoster and Risk of Incident Parkinson's Disease in US Veterans: A Matched Cohort Study. Movement Disorders 2024, 39: 438-444. PMID: 38226430, PMCID: PMC10922272, DOI: 10.1002/mds.29701.Peer-Reviewed Original ResearchConceptsUS Department of Veterans AffairsCohort studyRisk of incident PDDepartment of Veterans AffairsCox proportional hazards regressionIncident Parkinson's diseaseAssociated with increased riskHistory of HZMatched cohort studyProportional hazards regressionRisk of PDHerpes zosterIncident PDRisk of incident Parkinson's diseaseVeterans AffairsIncident HZUS veteransPD overallHazards regressionPD riskParkinson's diseaseIncreased riskMatched individualsUS DepartmentAssociated with Parkinson's disease
2023
Excess mortality in US Veterans during the COVID-19 pandemic: an individual-level cohort study
Weinberger D, Bhaskaran K, Korves C, Lucas B, Columbo J, Vashi A, Davies L, Justice A, Rentsch C. Excess mortality in US Veterans during the COVID-19 pandemic: an individual-level cohort study. International Journal Of Epidemiology 2023, 52: 1725-1734. PMID: 37802889, PMCID: PMC10749763, DOI: 10.1093/ije/dyad136.Peer-Reviewed Original ResearchConceptsExcess mortality ratesExcess mortalityComorbidity burdenHazard ratioCohort studyMortality rateVeterans Aging Cohort Study (VACS) IndexIndividual-level cohort studyVeterans AffairsCOVID-19 pandemicLarge integrated healthcare systemExcess mortality patternsHigher comorbidity burdenLower comorbidity burdenMost frail patientsCharlson Comorbidity IndexObservational cohort studyClinical risk groupsIntegrated healthcare systemLeast frailComorbidity indexFrail patientsPre-pandemic periodMedian ageUS veterans
2021
Accuracy of the Veterans Health Administration COVID-19 (VACO) Index for predicting short-term mortality among 1307 US academic medical centre inpatients and 427 224 US Medicare patients
King JT, Yoon JS, Bredl ZM, Habboushe JP, Walker GA, Rentsch CT, Tate JP, Kashyap NM, Hintz RC, Chopra AP, Justice AC. Accuracy of the Veterans Health Administration COVID-19 (VACO) Index for predicting short-term mortality among 1307 US academic medical centre inpatients and 427 224 US Medicare patients. Journal Of Epidemiology & Community Health 2021, 76: 254-260. PMID: 34583962, PMCID: PMC8483922, DOI: 10.1136/jech-2021-216697.Peer-Reviewed Original ResearchConceptsVACO IndexShort-term mortalityAcademic medical centerCause mortalityMedicare inpatientMedical CenterSingle US academic medical centerCOVID-19 indexTime of diagnosisUS academic medical centersUS Medicare patientsGreater clinical attentionCOVID-19SARS-CoV-2Nationwide cohortComorbidity diagnosesMedicare cohortInpatient populationUS veteransMedicare patientsHospital dataMedicare dataOutpatient dataClinical attentionInpatientsPharmacoepidemiology, 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 2019Hydroxychloroquine
2020
Safety of Gabapentin Prescribed for Any Indication in a Large Clinical Cohort of 571,718 US Veterans with and without Alcohol Use Disorder
Rentsch CT, Morford KL, Fiellin DA, Bryant KJ, Justice AC, Tate JP. Safety of Gabapentin Prescribed for Any Indication in a Large Clinical Cohort of 571,718 US Veterans with and without Alcohol Use Disorder. Alcohol Clinical And Experimental Research 2020, 44: 1807-1815. PMID: 32628784, PMCID: PMC7540277, DOI: 10.1111/acer.14408.Peer-Reviewed Original ResearchConceptsAlcohol use disorderMental statusRelative riskGabapentin exposureUse disordersICD-9 diagnostic codesAdverse neurologic effectsPotential medication interactionsAltered mental statusIncidence of fallsClear dose-response relationshipLarge clinical cohortDose-response relationshipRace/ethnicityUnexposed patientsHepatitis CAdverse eventsMedication interactionsExcess riskNeurologic effectsUS veteransDiagnostic codesIncidence rateClinical cohortHigh risk
2019
Patterns and Correlates of Prescription Opioid Receipt Among US Veterans: A National, 18-Year Observational Cohort Study
Rentsch CT, Edelman EJ, Justice AC, Marshall BDL, Xu K, Smith AH, Crystal S, Gaither JR, Gordon AJ, Smith RV, Kember RL, Polimanti R, Gelernter J, Fiellin DA, Tate JP, Kranzler HR, Becker WC. Patterns and Correlates of Prescription Opioid Receipt Among US Veterans: A National, 18-Year Observational Cohort Study. AIDS And Behavior 2019, 23: 3340-3349. PMID: 31317364, PMCID: PMC7344341, DOI: 10.1007/s10461-019-02608-3.Peer-Reviewed Original ResearchConceptsOpioid use disorderOpioid receiptCohort studyLong-term opioid therapyVeterans Aging Cohort StudyLatent growth mixture modellingPrescription opioid receiptObservational cohort studyAging Cohort StudyOpioid therapyCause mortalityHepatitis COpioid prescriptionsFuture prevention researchOUD diagnosisGrowth mixture modellingUS veteransHigh prevalenceLow doseHigh incidenceUse disordersPrevention researchGenetic discoveriesReceiptHIV