Elena Graetz, PhD
Senior Biostatistical AnalystCards
About
Titles
Senior Biostatistical Analyst
Education & Training
- PhD
- University of Illinois at Chicago, Statistics
- BSc
- University of Illinois at Chicago, Mathematics (2016)
- ND
- Freie Universitaet Berlin, Mathematics (2014)
Research
Publications
2025
Simultaneous Symmetrizing Surgery on the Contralateral Breast in Unilateral Autologous Breast Reconstruction Is Cost-Effective
Zhao K, Kammien A, Graetz E, Moore M, Evans B, Schneider E, Ayyala H. Simultaneous Symmetrizing Surgery on the Contralateral Breast in Unilateral Autologous Breast Reconstruction Is Cost-Effective. Journal Of Reconstructive Microsurgery 2025, 41: 787-793. PMID: 39821138, DOI: 10.1055/a-2517-0803.Peer-Reviewed Original ResearchFree flap reconstructionSymmetrization surgeryFlap reconstructionBreast reconstructionDelayed reconstructionPatient characteristicsSingle-stage breast reconstructionUnilateral autologous breast reconstructionAutologous breast reconstructionSurgical site infectionThirty-day complicationsContralateral breastUnilateral reconstructionImmediate reconstructionSite infectionWound dehiscenceThirty-dayIncreased complicationsNational administrative dataSurgeryRevision surgeryComplicationsPatientsWilcoxon testChi-squareCharacterization of trends in preoperative hemoglobin A1c testing prior to metabolic and bariatric surgery: a retrospective, observational study
Hamid S, Graetz E, Zolfaghari E, Schultz K, Schneider E, Gibbs K. Characterization of trends in preoperative hemoglobin A1c testing prior to metabolic and bariatric surgery: a retrospective, observational study. Perioperative Medicine 2025, 14: 3. PMID: 39789653, PMCID: PMC11720298, DOI: 10.1186/s13741-024-00483-8.Peer-Reviewed Original ResearchRobotic Roux-en-Y gastric bypassBariatric surgeryDiabetes statusSleeve gastrectomyA1c testingRoux-en-Y gastric bypassIncreased oddsPreoperative Hemoglobin A1cDemographic characteristics of patientsCharacteristics of patientsNon-insulin-dependent diabetesInsulin-dependent patientsBaseline diabetes statusLogistic regression analysisSleep apneaCardiopulmonary comorbiditiesAmerican Society of MetabolicGastric bypassMBSAQIP databaseClinical factorsHemoglobin A1c testingMBS patientsSociety recommendationsHemoglobin A1cDependent patients
2024
Local Infrastructure and Economy Predicts Traffic Related Fatalities in Children
Hellmann Z, Graetz E, Rehman S, Moore M, Schneider E, Christison-Lagay E, Solomon D. Local Infrastructure and Economy Predicts Traffic Related Fatalities in Children. Journal Of Pediatric Surgery 2024, 60: 162109. PMID: 39753412, DOI: 10.1016/j.jpedsurg.2024.162109.Peer-Reviewed Original ResearchMotor vehicle collisionsSocial Vulnerability IndexFatality Analysis Reporting SystemPoisson regressionRelated mortality rateMortality rateAverage annual mortality rateMultivariable Poisson regressionPoisson regression modelsTraffic fatalitiesArea deprivationWalking IndexUnivariate Poisson regressionAnnual mortality rateUS CensusDecile increaseMacroeconomic forcesPoor walkabilityState policy changesInclusion criteriaVehicle collisionsCrash-specific informationTraffic related fatalitiesRegression modelsWalkability
2021
Race Differences in Trajectories of Hopelessness Among U.S. Older Adults: Do Social Conditions Matter?
Uchechi Mitchell, Elena Graetz, Jing Wang, Race Differences in Trajectories of Hopelessness Among U.S. Older Adults: Do Social Conditions Matter?, Innovation in Aging, Volume 5, Issue Supplement_1, 2021, Page 256,Peer-Reviewed Original ResearchEffect size, sample size and power of forced swim test assays in mice: Guidelines for investigators to optimize reproducibility.
Smalheiser NR, Graetz EE, Yu Z, Wang J. Effect size, sample size and power of forced swim test assays in mice: Guidelines for investigators to optimize reproducibility. PLoS One 2021, 16: e0243668. PMID: 33626103, DOI: 10.1371/journal.pone.0243668.Peer-Reviewed Original Research
Academic Achievements & Community Involvement
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Contacts
Mobile Phone Number
Mailing Address
Yale School of Medicine
P.O. Box 208062
New Haven, CT 06520
United States