Irene Chen
irenetrampoline.bsky.social
Irene Chen
@irenetrampoline.bsky.social
ML for healthcare and health equity. Assistant Professor at UC Berkeley and UCSF.

https://irenechen.net/
Check out the paywall-free paper link below. I always enjoy working with Anna Zink (new prof starting at Tufts in fall 2025!)

ai.nejm.org/stoken/defau...
AI Tools in Human Hands: Measuring Real-World Impact in the Emergency Department
Although demonstrating AI’s clinical impact remains challenging, a real-world evaluation of an AI triage tool shows promise in improving emergency department efficiency and reducing racial disparit...
ai.nejm.org
February 27, 2025 at 9:06 PM
Great q! We found that standard ML training (incl rebalancing data, etc) still reflected the differences in EHR data quality. Later we started experimenting with different options such as adding self-report data to the model, but using regular ML training did not seem to help!
December 20, 2024 at 5:45 PM
tl;dr Healthcare access disparities cascade through the entire ML pipeline.

Check out our working paper here: arxiv.org/pdf/2412.07712
December 20, 2024 at 1:04 AM
Finding 3: Here's what helped: Adding patient self-reported data boosted model sensitivity by 11.2% for underserved patients. (Note adding the low/high access info did NOT help)
December 20, 2024 at 1:04 AM
Finding 2: "Just train a better model" isn't enough. EHR reliability has large effects on balanced accuracy (5.8% drop) and sensitivity (9.4% drop).
December 20, 2024 at 1:04 AM
Finding 1: For 78% of medical conditions we examined, data quality was worse for patients facing cost/time barriers to health. EHR reliability is defined compared against patient self-report
December 20, 2024 at 1:04 AM
Very cool! Excited to check it out
December 18, 2024 at 2:17 AM
jamanetwork.com
November 19, 2024 at 1:05 AM
Thank you thank you!!
November 14, 2024 at 3:32 AM
Super interested in this use case! Do you remember who the presenter was here?
November 14, 2024 at 1:57 AM
You got this Jessilyn! 🔥
November 12, 2024 at 4:29 AM