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Anders Huitfeldt

@andershuitfeldt.net
1.9K followers 286 following 41 posts

Aspiring rationalist. Medical doctor (PGY 5, addiction medicine). In a past life, I was an epidemiologist. MB BCh BAO (Royal College of Surgeons in Ireland, 2008). ScD (Harvard School of Public Health, 2015).

PostsRepliesMedia
Reposted by Anders Huitfeldt
Frank Harrell @f2harrell.bsky.social · 23/08/2026
The gold standard for producing PDF documents (especially books and journal articles) has been LaTeX. @typst.app re-engineered the entire process in an incredibly elegant extensible way. On my MacOS LaTeX (TexLive) takes 9.1GB of disk space. Typst takes 43MB. Not a misprint.
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Anders Huitfeldt @andershuitfeldt.net · 14/03/2026
The Royal Statistical Society discussion meeting for Regression by Composition will be held in London on March 24th. The event will also be livestreamed. Sign up to be among the first to hear about the future of regression modelling at rss.org.uk/training-eve...
rss.org.uk
Discussion Meeting: 'Regression by composition' by Farewell et al. (Online)
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Julia M. Rohrer @dingdingpeng.the100.ci · 19/09/2025
Fun article about “outsider” scientists and their breakthroughs. “Academia filters most funding, publishing, and hiring decisions through senior insiders, which favors ideas within existing paradigms.” worksinprogress.co/issue/why-sc...
worksinprogress.co
Why science needs outsiders - Works in Progress Magazine
Science has forgotten that the greatest breakthroughs often come from outsiders who are able to take a fresh perspective.
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Tim Morris @timpmorris.bsky.social · 09/07/2025
Reckon I can submit this as a figure for a paper?
Goose chase meme. Goose asks "Unbiased for what estimand?" then yells "Unbiased for what!!"
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Tim Morris @timpmorris.bsky.social · 07/07/2025
New post: “Marginal” and “conditional” are relative descriptions of an estimand
Foreground text says “Marginal” and “conditional” are relative descriptions of an estimand
In the background is a smokey mollusc
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Brennan Kahan @brennankahan.bsky.social · 01/07/2025
New paper posted on Arxiv: "When do composite estimands answer non-causal questions?" This can happen more often than you think, and can have a dramatic impact on trial results (e.g. a false-positive rate of almost 90%) arxiv.org/abs/2506.22610 @timpmorris.bsky.social
arxiv.org
When do composite estimands answer non-causal questions?
Under a composite estimand strategy, the occurrence of the intercurrent event is incorporated into the endpoint definition, for instance by assigning a poor outcome value to patients who experience th...
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Anders Huitfeldt @andershuitfeldt.net · 26/02/2025
After two years of trying to avoid this discussion, I just necroed *that thread* on datamethods (discourse.datamethods.org/t/should-one...) in order to share an excellent preprint by philosopher Veli-Pekka Parkkinen (philsci-archive.pitt.edu/24785/1/efme...)
discourse.datamethods.org
Should one derive risk difference from the odds ratio?
I urge all readers of this thread to read the excellent new preprint from philosopher of science Veli-Pekka Parkkinen, “Choice of effect measure, extrapolation, and decision-making in patient care an...
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George Takei @georgetakei.bsky.social · 19/02/2025
I’m George Takei and I approve of this message.
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Tim Morris @timpmorris.bsky.social · 03/01/2025
🤢 horrifying piece of work, which we’ll see idiots quoting. For goodness sake @jclinepi.bsky.social
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Ben Golub @bengolub.bsky.social · 24/12/2024
In economics, editors, referees, and authors often behave as if a published paper should reflect some kind of authoritative consensus. As a result, valuable debate happens in secret, and the resulting paper is an opaque compromise with anonymous co-authors called referees. 1/
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Jeremy Labrecque @jeremylabrecque.bsky.social · 10/12/2024
People say estimating a causal effect sets the bar unattainably high. But estimating an association is a bar that is literally so low that you can't go under it. Better to aim for what you want and fall short than to, in Homer Simpson's words, "aim so low, no one will even care if you succeed."
media.tenor.com
a cartoon of homer simpson and marge simpson with the words you tried your best
Alt: a cartoon of homer simpson and marge simpson with the words you tried your best and you failed miserably, the lesson is never try.
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Brad Heath @bradheath.bsky.social · 10/12/2024
The Justice Department has filed a lawsuit against approximately two dogs.
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Anders Huitfeldt @andershuitfeldt.net · 10/12/2024
Unpopular opinion: Blinded peer review was a mistake. If someone is able to block my paper based on their midwit opinions, they should at the very least be forced to put their name on the review, and publicly stake their reputation on the (false) claim that my work is flawed.
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Harald Bækkelund @araldob.bsky.social · 06/12/2024
Same. Have no desire to speak ill of the dead, but I wished they had left this sentence out of the obituary: "He will be remembered for his remarkable contributions to the psychology world and as a defender of expression without undue fear of reprisal." Simply not true.
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Tim Morris @timpmorris.bsky.social · 04/12/2024
Can anyone point me to a convincing intro to / explanation of ‘in silico’ trials? Everything I’ve read & heard about them just makes the writer/presenter sound nuts. What am I missing??
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MwahahahahahadScientist @mads100tist.bsky.social · 14/11/2024
The Onion should buy Elsevier next
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Tim Feeney @tfeend.bsky.social · 15/10/2024
Gotta be honest here, Rhian is one of my favorite authors. I always enjoy her papers so much. I’m currently reading her paper on collapsibility and I feel like this one will be a natural follow up.
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Darren Dahly @statsepi.bsky.social · 03/10/2024
One for @andershuitfeldt.bsky.social (icymi) www.ncbi.nlm.nih.gov/pmc/articles...
ncbi.nlm.nih.gov
The averted infections ratio: a novel measure of effectiveness of experimental HIV pre-exposure prophylaxis agents
There is clear evidence that tenofovir disoproxil fumarate combined with emtricitabine (TDF-FTC) is a highly efficacious oral pre-exposure prophylaxis agent for preventing the acquisition of HIV. This...
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Anders Huitfeldt @andershuitfeldt.net · 18/09/2024
This new paper with Rhian Daniel and Daniel Farewell is an excellent opportunity to revive the classic discussions about odds ratios vs other measures of the effect academic.oup.com/jrsssa/artic... #episky #statssky #statistics
academic.oup.com
‘Does God toss logistic coins?’ and other questions that motivate regression by composition
Abstract. Regression by composition is a new and flexible toolkit for building and understanding statistical models. Focusing here on regression models for
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Jack Wilkinson @jdwilko.bsky.social · 05/09/2024
What is common knowledge in your field, but shocks outsiders? Most published medical research is essentially junk, and most health professionals aren’t sufficiently trained to tell the difference.
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Will Lowe @conjugateprior.org · 16/06/2024
Unwisely concluding that X causes Y because Y tends to follow X needs a better name than this. I suggest: Granger Danger
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Miguel Hernan @miguelhernan.org · 18/05/2024
With #TargetTrial emulation becoming increasingly popular, it's important to understand what it can and can't do. In this podcast I discuss how target trial emulation can improve causal inference from observational data and extend inferences from randomized trials edhub.ama-assn.org/jn-learning/...
edhub.ama-assn.org
Target Trial Emulation for Causal Inference From Observational Data With Dr Hernán
Miguel A. Hernán, MD, DrPH, professor of epidemiology, Harvard T.H. Chan School of Public Health, discusses Target Trial Emulation: A Framework for Causal Inference From Observational Data with JAMA Statistical Editor Roger J. Lewis, MD, PhD.
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Tim Morris @timpmorris.bsky.social · 28/03/2024
New post in which I advocate for signing your peer reviews. As always, I’m curious to hear your thoughts. open.substack.com/pub/tpmorris...
Image of the post title ‘The principle of signing your peer review’ with a background of me standing on a branch of a big turkey oak (you’ll have to read the post to get it).
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Anders Huitfeldt @andershuitfeldt.net · 06/03/2024
My attempts to convince epidemiologists and biostatisticians about the switch relative risk
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Tim Morris @timpmorris.bsky.social · 08/02/2024
‘Estimands: addressing some recent objections’ Just posted this one. As ever, very diplomatic! open.substack.com/pub/tpmorris...
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Marc Veldhoen @marcveld.bsky.social · 30/01/2024
Making every researcher seek grants is a broken model Funding should go to larger labs with many researchers, not to “principal investigators” rootsofprogress.org/... 1/3
rootsofprogress.org
Making every researcher seek grants is a broken model
Funding should go to larger labs with many researchers, not to “principal investigators”
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Tim Morris @timpmorris.bsky.social · 23/01/2024
Ooh what’s *this* on the BMJ’s front page? ‘The estimands framework: a primer on the ICH E9(R1) addendum’ Kahan, Hindley, Edwards, Cro & Morris @brennankahan.bsky.social www.bmj.com/content/384/...
bmj.com
The estimands framework: a primer on the ICH E9(R1) addendum
Estimands can be used in studies of healthcare interventions to clarify the interpretation of treatment effects. The addendum to the ICH E9 harmonised guideline on statistical principles for clinical ...
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Miguel Hernan @miguelhernan.org · 05/01/2024
Have you ever been advised to state your hypothesis in your grant application? Sander Greenland and I argue that stating hypotheses is unnecessary. lnkd.in/eW4ccgae Who cares what you guess the qualitative answer is before doing the study? Just do the study. Your hypothesis is nobody's business.
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Anders Huitfeldt @andershuitfeldt.net · 24/12/2023
#episky
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Maarten van Smeden @maartenvsmeden.bsky.social · 22/10/2023
In a couple of years we will talk about risk factor studies -- putting in a bunch of covariates in a multivariable regression model and declare the significant factors as important "risk factors" for health -- as one of the biggest mistakes in health research
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