Sofia Barragan

Sofia Barragan

Biostatistics PhD Student

University of Washington

Biography

I’m a PhD student at the University of Washington’s Department of Biostatistics. Broadly, my research aims to integrate rigorous Bayesian statistical methods with anti-racist theoretic frameworks to study the health of nonwhite, transgender, and HIV+ populations in the United States. I received a BA in Statistics from Macalester College in May 2022.

Currently, I am researching and developing machine learning (ML) techniques that maximize model fairness and minimize differential misclassification by race in suicide risk prediction models under Dr. Yates Coley and in collaboration with the Kaiser Permanente Washington Health Research Institute’s Biostatistics Division. Thus far, my work has primarily centered on developing, applying, and testing gradient-boosted machine learning models with re-sampling procedures to address model limitations caused by outcome imbalance.

While at Macalester, I had the pleasure of working with the University of Minnesota’s fabulous Division of Epidemiology and Clinical Research on multiple projects concerning the epidemiology of pediatric cancer. Broadly, I worked on the application of admixture mapping, gene expression analysis, and survival modeling to study racial and sex-based disparities in pediatric cancer incidence and outcome.

Outside of research, I love making digital art, drinking monster, making spotify playlists, and reading critical theory. My greatest passion, however, is being silly and having fun :)

Interests
  • Bayesian Biostatistics
  • Health Disparities
  • Transgender Health
  • Frailty Modeling
Education
  • PhD, Biostatistics, 2022-Present

    University of Washington

  • BA, Statistics, 2018-2022

    Macalester College

Projects

*
A Neighborhood Analysis of Drug/Narcotic Arrests in Seattle, Washington

A Neighborhood Analysis of Drug/Narcotic Arrests in Seattle, Washington

A capstone project studying the neighborhood-level development of the second opioid epidemic in Seattle.

Neighborhood Deserts: Transportation Access & Housing Disparities in NYC

Neighborhood Deserts: Transportation Access & Housing Disparities in NYC

A capstone project studying the relationship between transportation access and housing inequities in NYC using Bayesian models.

Vector Field Quizzes & Vizs

Vector Field Quizzes & Vizs

Computational art -> personalized vector fields for friends & class :)

Gene Expression Differences by Race and Genetic Ancestry in B-Cell Acute Lymphoblastic Leukemia

Gene Expression Differences by Race and Genetic Ancestry in B-Cell Acute Lymphoblastic Leukemia

My poster presentation on the genetic characteristics of survival disparities by race/ethnicity in B-cell Acute Lymphoblastic Leukemia for the American Society for Human Genetics’s annual conference.

Miscellaneous Art

Miscellaneous Art

A couple disparate digital works about a bunch of things! Some practice, some personal.

Recent Work

Recent Work

My favorite drawings from my first formal art class!

Summer '22 Drawings

Summer ‘22 Drawings

Summertime stuff

Markov Chains & their Applications to Statistical Genetics

Markov Chains & their Applications to Statistical Genetics

I wrote this bookdown on discrete Hidden Markov Models & their applications to local ancestry inference!

Disability and Illness in the Times of Covid-19

Disability and Illness in the Times of Covid-19

My final art project for a course in Disability studies

Recent Publications