2024
Development of a prediction model for 30-day COVID-19 hospitalization and death in a national cohort of Veterans Health Administration patients–March 2022—April 2023
Bui D, Bajema K, Huang Y, Yan L, Li Y, Rajeevan N, Berry K, Rowneki M, Argraves S, Hynes D, Huang G, Aslan M, Ioannou G. Development of a prediction model for 30-day COVID-19 hospitalization and death in a national cohort of Veterans Health Administration patients–March 2022—April 2023. PLOS ONE 2024, 19: e0307235. PMID: 39365775, PMCID: PMC11451987, DOI: 10.1371/journal.pone.0307235.Peer-Reviewed Original ResearchConceptsVeterans Health AdministrationCOVID-19 hospitalizationArea under the receiver operating characteristic curveComprehensive electronic health recordNational cohortElectronic health recordsAll-cause mortalityNational cohort of patientsFull modelHealth recordsHealth AdministrationReceipt of COVID-19 vaccineMortality riskEpidemiology of COVID-19COVID-19High-risk patientsBrier scoreCohort of patientsAnti-SARS-CoV-2 treatmentCOVID-19 vaccineReceiver operating characteristic curveCalibration interceptHospitalAntiviral treatmentAvailability of effective vaccines
2023
Comparison of the Test-negative Design and Cohort Design With Explicit Target Trial Emulation for Evaluating COVID-19 Vaccine Effectiveness
Li G, Gerlovin H, Muñiz M, Wise J, Madenci A, Robins J, Aslan M, Cho K, Gaziano J, Lipsitch M, Casas J, Hernán M, Dickerman B. Comparison of the Test-negative Design and Cohort Design With Explicit Target Trial Emulation for Evaluating COVID-19 Vaccine Effectiveness. Epidemiology 2023, 35: 137-149. PMID: 38109485, PMCID: PMC11022682, DOI: 10.1097/ede.0000000000001709.Peer-Reviewed Original ResearchTest-negative designTarget trial emulationVaccine effectivenessCohort designTrial emulationResidual confoundingCOVID-19 vaccine effectivenessHealth care-seeking behaviorBNT162b2 vaccine effectivenessCare-seeking behaviorCOVID-19 outcomesVA healthcare systemCOVID-19 vaccineBNT162b2 vaccineAbsolute riskObservational studyNationwide dataVeterans AffairsTarget trialsEffect estimatesHealthcare systemVaccineCohortNegative controlTrials