Immortal time bias
A subtle trap in treatment studies. I hadn’t heard of it, and had to follow the link before I really got it. To their credit, the authors acknowledge the flaw.
Another great piece at Fantastic Anachronism: Are Experts Real.
I hadn’t heard about N=59. 😱
…if the N=59 crew are making such ridiculous errors in their own papers, they obviously don’t have the ability to judge other people’s…