Ruijia Chen
ruijiachen.bsky.social
Ruijia Chen
@ruijiachen.bsky.social
Reposted by Ruijia Chen
Social determinants of health (SDOH) are often overlooked in policy-making, leading to individual-focused health initiatives.

In @thelancetph.bsky.social, authors call for a shift from individual accountability to systemic solutions to address SDOH: tinyurl.com/2s44vyuc
The responsibility of health: shifting the focus from individuals to systems
Social determinants of health, although widely acknowledged, tend to be poorly translated into policy. Health programme initiatives too often underline individual accountability, which reinforces a fl...
tinyurl.com
August 29, 2025 at 8:16 AM
Reposted by Ruijia Chen
New preprint up!

Evaluation of Amyloid Removal as a Surrogate for Cognitive Decline: Pilot Analysis in Individual-Level Data from the A4 Study of Solanezumab

www.medrxiv.org/content/10.1...
www.medrxiv.org
July 22, 2025 at 9:04 PM
Reposted by Ruijia Chen
Recent Innovations in Peer Programs for Socially Isolated Older Adults: Implications for Public Health Emergency Preparedness. #geriatrics #socialisolation #medsky agsjournals.onlinelibrary.wiley.com/doi/10.1111/...
July 23, 2025 at 11:05 PM
Reposted by Ruijia Chen
Postdoc at University of Michigan Institute for Social Research--How social environment shapes biological processes of aging :

careers.umich.edu/job_detail/2... #episky #demography #publichealth
Postdoctoral Research Fellow | U-M Careers
careers.umich.edu
June 24, 2025 at 9:36 AM
Reposted by Ruijia Chen
Interested in social epidemiology but don't have access to formal training, or do you want more than your current training program offers? Check out new online course from University of Toronto, including lectures from yours truly on social policy evaluation: leongcentre.utoronto.ca/social-epide...
June 13, 2025 at 9:22 PM
Reposted by Ruijia Chen
There’s a lot of amazing work at #SER2025 but this DAG poetry art poster is the best poster I’ve seen at any research conference in a decade

@epidbydesign.bsky.social
June 12, 2025 at 10:29 PM
Reposted by Ruijia Chen
NEW! Alzheimer’s Disease Facts & Figures 2025. This year’s special report examines attitudes towards early detection, testing and new treatments.

92% of Americans want a medication to slow progression following a diagnosis

alz-journals.onlinelibrary.wiley.com/doi/10.1002/...

#AlzResearch
May 15, 2025 at 7:34 PM
Reposted by Ruijia Chen
I like this paper: not only does it review of all the reasons standardized coefficients are bad, actually,

It also then goes on to show how test statistics can be used as measures of unique contribution/ effect size! - something that just sounds so so wrong!

#stats

doi.org/10.1080/0003...
May 4, 2025 at 10:07 AM
Reposted by Ruijia Chen
The biggest project I've worked on for the last chunk of years was just published. It asks, how big are US Black-white lifespan differences?

This might seem like a narrow question. I hope to convince you by the end that there are answers you didn't anticipate. And I hope some of them will move you.
Three Ways of Looking at Black–White Mortality Differences in the United States | Annual Reviews
Everyone agrees that US Black deaths happen earlier than white deaths on average, but it is surprisingly challenging to find the best ways to summarize, quantify, and compare this gap. This review arg...
www.annualreviews.org
April 30, 2025 at 8:27 PM
Reposted by Ruijia Chen
2/2 the foreword for the new edition is at \https://www.bristol.ac.uk/media-library/sites/integrative-epidemiology/documents/Foreword%20-%20Life%20course%20book.pdf @uob-ieu.bsky.social
www.bristol.ac.uk
February 28, 2025 at 4:56 PM
Reposted by Ruijia Chen
Good news alert! The 2023 American Community Survey (ACS) 5-year files is now available on IPUMS USA. Join us in our data joy 🎉 usa.ipums.org
two cartoon animals hugging each other with the word seduff on the bottom right
Alt: Cartoon gif of Bluey and Bingo from the show 'Bluey' hug and jump in a circle in joy
media.tenor.com
February 27, 2025 at 6:24 PM
Reposted by Ruijia Chen
From some slides I made on #difference-in-differences:

I came up with a checklist (geared towards people seeing DID for the first time).

I know @pedrosantanna.bsky.social has a great checklist already (which I have fully adopted). This is meant to be an intro to that type of thinking.
February 24, 2025 at 3:33 PM
Reposted by Ruijia Chen
Hearing on NIH indirect cost cuts today (2/21) at 10am (EST). Judge Angel Kelley of U.S. District Court in Boston — Courtroom 8.

Register for hearing audio here👇🏻

forms.mad.uscourts.gov/courtlist.html
Courtlist Schedule
forms.mad.uscourts.gov
February 21, 2025 at 1:40 PM
Reposted by Ruijia Chen
First post!!

New reading material:

We explore minimal clinically important differences for function in AD/ADRD trials + consider opportunities to improve outcome measure sensitivity and attention to the priorities of those living with dementia

alz-journals.onlinelibrary.wiley.com/doi/10.1002/...
February 21, 2025 at 4:30 AM
Reposted by Ruijia Chen
www.medrxiv.org/content/10.1...

Have efforts from epidemiologists to reduce reliance on P values reduced P hacking? Probably not.

Do decreases in the fraction of P values just below 0.05 necessarily imply less P hacking? No.

#episky #metascience
Trends in the Distribution of P Values in Epidemiology Journals: Decreased P Hacking or Increased Power?
Epidemiologists have advocated for reporting confidence intervals and deemphasizing P values to address long-standing concerns about null-hypothesis statistical-significance testing, P hacking, and re...
www.medrxiv.org
February 14, 2025 at 9:51 PM