Yes, we should really start calling them TIE fighter plots! Can we do this please? #episky #statsky #epimethods

All September, I'm explaining common research biases. Today is detection bias. Which is so simple even Trump understands it! Read here: open.substack.com/pub/epiellie...

Proposal for how to fix family wise error rates. For every uncorrected p value you must add an extra letter to the claim. “Eating chocolate maaaaaaaaay be associated with lower rates of stroke”

Today's post is all about how a badly designed study can make it look like people live forever. And how, if you only apply this to one group, you can essentially guarantee any study result you want. 😬 open.substack.com/pub/epiellie...

Less p-hacking, better powered studies, or both? Paper looking at the distribution of p-values in articles published in four #episky journals between 2000-2024. #epimethods #statsky doi.org/10.1093/aje/...

... and to better hide it if it happens anyway.

Thread with a loose collection of papers on recruitment for population-based research, reporting standards/practice, and approaches to increase diversity in samples and engagement of populations underserved by health research and services. #episky #epidemiology #publichealth #medsky #statsky

I am beyond excited to announce that ggplot2 4.0.0 has just landed on CRAN. It's not every day we have a new major #ggplot2 release but it is a fitting 18 year birthday present for the package. Get an overview of the release in this blog post and be on the lookout for more in-depth posts #rstats

Code in the R script that I have been using for years to monitor recruitment in a long-running study. #EpiSky #StatSky #rstats

RFK Jr loves to say that there was no autism when he was a kid. And technically he's right. But he's also making a classic error! open.substack.com/pub/epiellie...

Today's E is for Epi reveals the one weird trick that prevents all illness! Check it out here👇 open.substack.com/pub/epiellie...

RFK Jr has promised to release a report on the causes of autism in September. To prepare, it's a good idea to make sure we know what the common types of observational research biases are. First up: confounding by indication. Read more here: open.substack.com/pub/epiellie...

The CAUSALab Methods Series @ki.se is back! Fall 2025 lineup kicks off Sep 23 with Vanessa Didelez (BIPS), “Causal mediation and separable treatments in time-to-event analyses.” All talks are virtual, except for Nov. 4, 2025 hybrid session. Learn more & register: hsph.harvard.edu/research/cau...

When using observational data for #causalinference, the choice isn’t between emulating or not emulating a #TargetTrial, but between reporting or not reporting the target trial that we are emulating. For those who prefer to be explicit about what they do, we have developed the TARGET Statement 👇

In rare moments of reflection, I am always amazed how much I trust that R packages do what they claim to do, especially if their version number starts with a zero. 😬 #R #data #epimethods

The TARGET 2025 guideline provides recommendations for transparent reporting of observational studies emulating a target trial to estimate causal effects, enhancing clarity and interpretation. #PRC10 @peerreviewcongress.bsky.social ja.ma/41w9rwW

A nasal spray reduced the risk of Covid infections in a double blind, placebo controlled randomized trial jamanetwork.com/journals/jam...