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
2026
In Reply to the Letter to the Editor in Response to “Palliative care in patients admitted with primary burn injury”
Miller S, D’Aquila M, Graetz E, Schneider E, Gibbs K, Savetamal A. In Reply to the Letter to the Editor in Response to “Palliative care in patients admitted with primary burn injury”. Journal Of Burn Care & Research 2026, 47: 1271-1271. PMID: 42084281, DOI: 10.1093/jbcr/irag060.Peer-Reviewed Original Research370 INFLUENCE ON BARRETT’S ESOPHAGUS ON METABOLIC AND BARIATRIC SURGERY SELECTION AND OUTCOMES
Graetz E, Ghiassi S, Schneider E, Gibbs K. 370 INFLUENCE ON BARRETT’S ESOPHAGUS ON METABOLIC AND BARIATRIC SURGERY SELECTION AND OUTCOMES. Gastroenterology 2026, 170: s-2686-s-2687. DOI: 10.1016/s0016-5085(26)06354-7.Peer-Reviewed Original Research370 INFLUENCE ON BARRETT’S ESOPHAGUS ON METABOLIC AND BARIATRIC SURGERY SELECTION AND OUTCOMES
Graetz E, Ghiassi S, Schneider E, Gibbs K. 370 INFLUENCE ON BARRETT’S ESOPHAGUS ON METABOLIC AND BARIATRIC SURGERY SELECTION AND OUTCOMES. Gastrointestinal Endoscopy 2026, 103: s-2686-s-2687. DOI: 10.1016/s0016-5107(26)06285-1.Peer-Reviewed Original Research950. Characteristics of Burn Patients Exceeding 50 Days' Length of Stay
Cotterell A, Savetamal A, Graetz E, Schneider E. 950. Characteristics of Burn Patients Exceeding 50 Days' Length of Stay. Journal Of Burn Care & Research 2026, 47: s449-s450. PMCID: PMC13057976, DOI: 10.1093/jbcr/irag033.517.Peer-Reviewed Original Researchlength of stayacute respiratory failureinhalation injuryNational Inpatient Sampleburn patientsrespiratory failureno significant differenceskin graftskidney failure ratesmortality rate of patientspatients' woundsmortality rateoutcomes of patientssignificant differencetotal body surface areaacute kidney failurerate of patientsbody surface areatime of reepithelializationshorter length of staycharacteristics of burn patientshome health careday ruleschi-square testdischarged with home health careReal-world Physical Activity and Sedentary Time Trends in Patients Undergoing Obesity Treatment: Insights From the All of Us Research Program
Butensky S, Hamid S, Graetz E, Ying L, Schwartz J, Schneider E, Ghiassi S, Gibbs K. Real-world Physical Activity and Sedentary Time Trends in Patients Undergoing Obesity Treatment: Insights From the All of Us Research Program. Obesity Surgery 2026, 36: 2448-2457. PMID: 41912836, DOI: 10.1007/s11695-026-08645-x.Peer-Reviewed Original ResearchUs Research Programmaximum heart ratephysical activityRoux-en-Y gastric bypassactivity minutesobesity treatmenteffects of physical activitytraditional follow-upsleeve gastrectomywearable dataobjective PAsedentary minutessedentary timePA metricsstep countspatient activationpatients treated with semaglutideretrospective analysisRoux-en-Y gastric bypass patientsglucagon-like peptide-1 receptor agonistsretrospective analysis of patientstime trendsheart ratepeptide-1 receptor agonistsanalysis of patientsCell Phone Measured Population Mobility and Interactions as a Predictor of Trauma Volume and Trauma Center Need
Mathew P, Graetz E, Maung A, Keating J, Moutinho M, Schneider E, Davis K, Schuster K. Cell Phone Measured Population Mobility and Interactions as a Predictor of Trauma Volume and Trauma Center Need. The American Surgeon 2026, 92: 2190-2197. PMID: 41723595, DOI: 10.1177/00031348261429438.Peer-Reviewed Original ResearchThis study investigates how smartphone-based population mobility data predicts trauma admissions, showing a significant correlation that could improve trauma center planning during dynamic population shifts.
2025
Palliative Care in Patients Admitted with Primary Burn Injury
Miller S, Graetz E, D’Aquila M, Sharan M, Schneider E, Gibbs K, Savetamal A. Palliative Care in Patients Admitted with Primary Burn Injury. Journal Of Burn Care & Research 2025, 47: 661-668. PMID: 41288581, DOI: 10.1093/jbcr/iraf218.Peer-Reviewed Original Researchpalliative careolder patientsPC consultationPC encounterburn injuryNational Inpatient Sampleclinical decision-makingPC utilizationpatient comfortnonteaching hospitalschi-square analysisHispanic patientsteaching hospitalInpatient Samplewhite patientsnational populationoverall satisfactionpatient characteristicsrBaux scorecaremulti-variable regressionburn diagnosisassociated with significant morbidityscorespatient characteristic differencesCell Phone Activity and Trauma Patient Volume in New England Through the COVID-19 Pandemic: A Research Consortium of New England Centers for Trauma Study.
Mathew P, Graetz E, Alouidor R, Pinto F, Aunchman A, Kaafarani H, Proaño-Zamudio J, Keating J, Lueckel S, Moutinho M, Schneider E, Schuster K. Cell Phone Activity and Trauma Patient Volume in New England Through the COVID-19 Pandemic: A Research Consortium of New England Centers for Trauma Study. Journal Of The American College Of Surgeons 2025, 241: 896-903. PMID: 40568984, DOI: 10.1097/xcs.0000000000001486.Peer-Reviewed Original ResearchThis study investigates how smartphone-based mobility data, measured as device proximity, correlates with trauma patient volumes, highlighting its potential for improving trauma system planning and resource allocation.Metabolic and bariatric surgery outcomes in patients with gastroparesis: a retrospective analysis of the 2016 to 2022 Nationwide Readmissions Database
Hamid S, Graetz E, Schneider E, Schwartz J, Ghiassi S, Gibbs K. Metabolic and bariatric surgery outcomes in patients with gastroparesis: a retrospective analysis of the 2016 to 2022 Nationwide Readmissions Database. Journal Of Gastrointestinal Surgery 2025, 29: 102107. PMID: 40466804, DOI: 10.1016/j.gassur.2025.102107.Peer-Reviewed Original ResearchRoux-en-Y gastric bypasslength of stayNationwide Readmissions Databasereoperation rateReadmissions DatabaseRoux-en-Ybariatric surgery outcomespostoperative eventssleeve gastrectomygastric bypassbariatric surgeryclinical factorssurgery outcomesretrospective analysisprocedure typecounseling patientsreoperationMBS patientsprimary outcomegastroparesisobesity treatmentSecondary outcomespatientsreadmission ratesreadmissionFactors Associated with Preoperative Attrition from a Large, Racially and Ethnically Representative Bariatric Program in the USA: A Single-Center Retrospective, Cohort Study
Hamid S, Butensky S, Graetz E, Olivares M, Schwartz J, Schneider E, Ghiassi S, Gibbs K. Factors Associated with Preoperative Attrition from a Large, Racially and Ethnically Representative Bariatric Program in the USA: A Single-Center Retrospective, Cohort Study. Obesity Surgery 2025, 35: 2390-2394. PMID: 40295326, DOI: 10.1007/s11695-025-07884-8.Peer-Reviewed Original ResearchConceptsfactors associated with attritionassociated with decreased oddsobesity-related diseasesHispanic ethnicitySocial Vulnerability Indexstudy samplepreoperative attritionelectronic health recordsacademic health systemassociated with increased oddsassociated with attritionregional-level factorsmultivariate logistic regressionhealth recordsnon-Hispanichealth systemcompared individual-US populationincreased oddssurgical treatment of obesitycohort studyMedicare insurancelogistic regressionMedicareodds
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Yale School of Medicine
P.O. Box 208062
New Haven, CT 06520
United States