Overview
Statistical research methodology, analysis of repeated measurements, latent growth curve models, latent class growth models, classification and regression trees,
designing clinical trials, designing clinical trials in psychiatry -- both treatment and non-treatment
trials in various comorbid populations.
designing clinical trials, designing clinical trials in psychiatry -- both treatment and non-treatment
trials in various comorbid populations.
Current Duke Appointments & Affiliations
Professor of Biostatistics & Bioinformatics
·
2021 - Present
Biostatistics & Bioinformatics, Division of Biostatistics,
Biostatistics & Bioinformatics
Professor in Psychiatry and Behavioral Sciences
·
2021 - Present
Psychiatry & Behavioral Sciences, Behavioral Medicine & Neurosciences,
Psychiatry & Behavioral Sciences
Senior Fellow in the Center for the Study of Aging and Human Development
·
2003 - Present
Center for the Study of Aging and Human Development,
Institutes and Centers
Recent Scholarly Works
Predictive Utility of In-Hospital Screening for Postdischarge Depression Symptoms Among Survivors of Critical Illness.
Journal article CHEST Crit Care · September 2026 BACKGROUND: Although postdischarge symptoms of depression are highly prevalent after critical illness, the best timing and strategies for screening are unclear. RESEARCH QUESTION: What is the value of using the 2-item Patient Health Questionnaire (PHQ-2) d ... Full text Link to item CiteProspective cohort study identifies barriers and facilitators to point-of-care ultrasound use in an academic emergency department.
Journal article BMJ Open Qual · July 21, 2026 BACKGROUND: Point-of-care ultrasound (POCUS) improves patient care by expedited diagnosis and safer procedures. Despite POCUS benefits, some clinicians, including emergency physicians, do not readily use POCUS. OBJECTIVES: The study objective identified ba ... Full text Link to item CiteImpact Evaluation of a Clinical Point-of-care Ultrasound Intervention in an Academic Emergency Department.
Journal article West J Emerg Med · June 28, 2026 INTRODUCTION: Point-of-care ultrasound (POCUS) can expedite patient diagnoses and improve procedural safety in emergency department (ED) patients. Nevertheless, clinical POCUS use lags in many ED sites nationwide, with only 40% of community physicians usin ... Full text Link to item CiteRecent Grants
Donor-specific transplant tolerance by immune reset
ResearchBiostatistician · Awarded by National Institutes of Health · 2026 - 2031Improving needs among older adults: the ICUconnect 2 primary palliative care RCT
ResearchBiostatistician III · Awarded by National Institute on Aging · 2024 - 2029Phosphate in human acute pancreatitis
Clinical TrialCo Investigator · Awarded by National Institutes of Health · 2026 - 2029View All Grants
Education
Texas A&M University ·
1992
Ph.D.