Daniel T. Vader

Postdoctoral Researcher

University of Pennsylvania


Dan is a Postdoctoral Researcher at the University of Pennsylvania where he is working with EHR data to answer questions concerning advanced cancer care and infection after organ transplant. His methodological interests include measurement error, missing data, and irregularly measured exposures. He is also interested in inference using national survey data.


  • EHR Data
  • Vaccination
  • Hepatitis B
  • Misclassification
  • Missing data
  • Survey data analysis
  • Social science fiction


  • PhD in Epidemiology, 2020

    Dornsife School of Public Health at Drexel University

  • MS in Epidemiology, 2015

    Dornsife School of Public Health at Drexel University

  • BA in English, 2009

    Goshen College









Postdoctoral Reseracher

University of Pennsylvania

Jul 2020 – Present Philadelphia, PA

Teaching Fellow

Drexel University

Jul 2017 – Jun 2018 Philadelphia, PA

Adjunct Professor

Geisinger Commonwealth School of Medicine

Jun 2016 – Aug 2018 Doylestown, PA

Research Fellow

Drexel University

Sep 2015 – Sep 2019 Philadelphia, PA

Web Content Strategist and Manager

Goshen College

Dec 2012 – Jul 2013 Goshen, IN

Recent Publications

CMV infection and management among pediatric solid organ transplant recipients

Cytomegalovirus (CMV) is an important cause of morbidity and mortality in pediatric solid organ transplant (SOT) recipients. However, the impact of asymptomatic CMV infections (ie, DNAemia) on clinical outcomes is not well established…

Hospital-acquired Clostridioides difficile infection among patients at an urban safety-net hospital in Philadelphia: Demographics, neighborhood deprivation, and the transferability of national statistics

The goals of this study were to investigate the association between CDI and race or ethnicity, insurance type, referral location, and SDI at HUH and to compare demographic patterns of infection at HUH with what has been observed nationally.

A Predictive Model for Hepatitis B Infection Among High‐Risk Adults Using a Community‐Based Sample in Greater Philadelphia

Liver cancer is the 3rd deadliest cancer worldwide, with 5-year survival rates of only 15%. In the U.S., liver cancer incidence…

Hepatitis B Birth Dose Effects on Childhood Immunization in the U.S.

Association between timing of hepatitis B birth dose and up-to-date vaccination status at 18 months of age.


  • Philadelphia, PA, United States
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