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During Reunion Weekend, on October 7, 2022, Vanderbilt's Master of Public Health program celebrated its 25th anniversary. Professor William Dupont was recognized for his 25 years of outstanding teaching in the program. (Earlier this year, Dr. Dupont's 45 years at the university were also highlighted.) Department members Yu Shyr and Yuwei Zhu were recipients of 10-Year Teaching Awards.

The 2022 Women in Statistics and Data Science Conference was hosted by the American Statistical Association in St. Louis from October 6 through October 8. Participants associated with our department included the following:

Sarah Lotspeich (a graduate of our PhD program), presenting author of "One size fits all: A generalized algorithm to fitting GLMs with censored predictors in R" and chair of "Celebrating our Knowledge"

Tess Stopczynski (biostatistician), presenting author of "Handling limit of detection values for sepsis biomarkers in neonates," co-authored by senior associate (Gregory) Dan Ayers, with Jörn-Hendrik Weitkamp from the Vanderbilt Institute for Infection, Immunology and Inflammation

Tianyi Sun (PhD student), presenting author of "Submodel approximation under preconditioning outcome approach." Co-authored by associate professor Dandan Liu.

Congratulations to all!

The 2022 Joint Statistical Meetings, which begin this Saturday, August 6, are expected to bring together more than six thousand attendees from over fifty countries. We are proud of the department members and alumni who will be sharing their work in Washington, DC, next week. They include the following:

Sunday, August 7

At 2:00 p.m., in session 9, assistant professor Simon Vandekar will present an invited paper, "Cell Normalization and Phenotyping for Multiplexed Single-Cell Imaging," that he co-authored with recent PhD graduate Coleman Harris (now at Nashville Biosciences) and current PhD student Jiangmei Ruby Xiong.

Also at 2:00 p.m., in session 23, associate professor Benjamin French will present his topic contributed paper, "Statistical Analysis of Atomic Bomb Survivor Data: Challenges and Opportunities." This session will also feature "Evaluation of Sources of Bias in Time-Dependent Radiation Dose Response Models for Individual Cohorts and Challenges Associated with Pooling in the Million Worker Study," which French co-authored with colleagues in Oak Ridge and Yeji Ko, a student in our MS program.

At 4:00 p.m., in session 37, assistant professor Andrew Spieker will present an invited paper, "A Semiparametric G-Computation Approach Based on Cumulative Probability Models," that he co-authored with biostatistician Caroline Birdrow (a graduate of our MS program) and professor Bryan Shepherd. Shepherd co-authored two papers in the session: 

Monday, August 8

At 8:30 a.m., session 90 will feature invited papers on "Dealing with Error-Prone Electronic Health Record Data via Validation Sampling," with Bryan Shepherd as organizer and chair. He co-authored "Advantages of Multi-Wave, Multi-Frame Sampling Designs for Analysis of Error-Prone Data from Electronic Health Records," which will be presented by Pamela Shaw from Kaiser Permanente, and "Implementing an Optimal Multi-Wave Validation Design in a Multi-National HIV Research Cohort," which will be presented by research assistant professor Gustavo Amorim.

Also at 8:30 a.m., assistant professor Jinyuan Liu will be chairing session 109, which will feature six contributed papers on "Innovative Approaches in Biomarkers Discovery and Subgroup Analyses."   

At 10:30 a.m., in the Mental Health Statistics Section's poster session, PhD candidate Kaidi Kang will present a poster, "Accurate Confidence Interval Estimation for Non-Centrality Parameters and Effect Size Indices," co-authored with five other Vanderbilt University Medical Center researchers: Kristan Armstrong, Suzanne Avery, Maureen McHugo, Stephan Heckers, and Simon Vandekar.

At 2:00 p.m., the Statistics in Imaging Section showcases its student paper winners, in a session organized and chaired by Simon Vandekar.

The Biometrics Section is likewise featuring early-career paper winners at 2:00 p.m., in a session chaired by Andrew Spieker.

Tuesday, August 9

At 8:30 a.m., a paper co-authored by professor Qingxia (Cindy) Chen, "Estimation of Treatment Effects and Model Diagnostics with Two-Way, Time-Varying Treatment Switching," will be presented in the topic contributed session on "Statistical Considerations for Adjusting Overall Survival in Randomized Trials with Treatment Switching." 

At 10:30 a.m., another topic contributed session sponsored by the Biopharmaceutical Section will include "Testing and Estimating Treatment Effect in the Presence of Delayed Onset of the Effect for Cancer Immunotherapies," a paper co-authored by Hui Nian, assistant in biostatistics and orthopedic surgery.

At 2:00 p.m., session 312, "What We Know About What We Don't Know: Overcoming Incomplete Data in Practice," will be chaired by Sarah C. Lotspeich, a graduate of our doctoral program who's now an assistant professor in the new Department of Statistical Sciences at Wake Forest University. The invited papers in this session include "Missing Data in the Baseline Health Surveys of the All of Us Research Program and the Opportunity from Multiple Information Sources," which will be presented by Cindy Chen; her collaborators include biostatistician Xiaoke (Sarah) Feng and assistant Shawn Garbett.

Wednesday, August 9

At 2:00 p.m., in session 488, Jiangmei Ruby Xiong will present a contributed paper titled "Faster Estimation for Constrained Gamma Mixture Models Using Closed-Forms Estimators." The paper was co-authored by Simon Vandekar and an array of prominent School of Medicine scientists.

Congratulations and safe travels to all!

Left to right: Leena Choi, Akshat Vasisht, Mary Guirguis, Rajala Bean

On Friday, July 1, the Vanderbilt Biostatistics Summer Internship for Underrepresented Undergraduates program celebrated the conclusion of its inaugural season with presentations by its participants. The above photograph (by department chair Yu Shyr) shows them in front of scientific posters about the research they performed. Mary Guirguis and Akshat Vasisht investigated "Reproducibility and Quality Control for Combination Drug Screening" in collaboration with PhD student Elisa Yazdani and faculty mentor Amir Asiaee. Rajala Bean focused on "SEPSIGN: early identification of SEPsis SIGNs in emergency department" in collaboration with faculty mentor Chris Lindsell and biostatistician Cassie Hennessy.

In addition to conducting research and attending classes on statistics and computing, the interns received professional development training from staff and faculty on topics such as writing CVs, resumes, and personal statements; creating statistical reports, posters, and oral presentations; and preparing for interviews. The program also featured lunches with department members. It was headed by Leena Choi, professor of biostatistics and vice chair of diversity and inclusion.

Bean expects to receive her bachelor's degree in health sciences in Spring 2023; in addition to her school and work commitments, she is active with Love You Like a Sister, Alpha Kappa Alpha, ThriftSmart (a Nashville store whose proceeds benefit African Leadership, the Belize Project, Mercy Community Healthcare, and New Hope Academy), and Nashville General Hospital's Food Tote Delivery program. Guirguis is a computer science student at Middle Tennessee State University; her experiences include working as a pharmacy technician at Polaris, programming a virtual reality horror project during MTSU's hackathon, and volunteering for Second Harvest. Vasisht, from Brentwood High School, is an aspiring software engineer, an American Red Cross ambassador, and a teen board member and volunteer with the John P. Holt Brentwood Library.

The internship information page will be updated when the application period for the 2023 program is about to open. 

AACR Fellows, class of 2022. Yu Shyr is third from left in the front row.