Raechel E. Kula

I finally had a chance to dig into this monster of a study—and if you care about evidence-based healthcare, you need to read this. But first, let me explain why I care so much. There’s been a flood of retracted COVID-related studies—some of which gained massive media coverage before being pulled. As of June 2023, over 300 papers were retracted for fraud, with 19 more under expressions of concern. Some of these falsely claimed that masking caused Long Covid, or wildly underestimated COVID severity and Long Covid prevalence—especially in kids. And once bad data gets embedded in systematic reviews and guidelines, it doesn’t just vanish. It spreads. It sticks. It misleads. That’s where this VITALITY Study I comes in. Published in BMJ (April 2025), it’s the largest empirical investigation to date tracking how retracted RCTs contaminate the entire healthcare evidence ecosystem—from meta-analyses to clinical guidelines. Here are the jaw-dropping findings: Key Findings: •1330 retracted trials were identified; 847 systematic reviews had already included them. •1 in 5 meta-analyses changed meaningfully when retracted trials were removed: ◦8.4% flipped direction of effect ◦16.0% lost statistical significance ◦15.7% changed magnitude by more than 50% ◦3.9% flipped both direction and significance But it doesn’t stop there: •These flawed meta-analyses fed directly into 157 clinical guidelines, many still live today. •Reviews with fewer included studies were most vulnerable—where just one retracted trial could tip the scales. •Harm outcomes, which are often underreported or fragile, were especially distorted. And most importantly? 
Almost 40% of these reviews were published after the included trials had already been retracted. Implication? We’re making clinical decisions based on zombie data. If this doesn’t make the case for routine retraction screening in evidence synthesis—and updates to guideline repositories—I don’t know what does. This study deserves to be required reading for: •Systematic reviewers •Clinical guideline developers •Journal editors •Policy makers •Clinicians who trust what the evidence base tells them Data integrity is not a luxury—it’s the backbone of public trust. And it’s time we built systems to protect it. doi.org/10.1136/bmj-2024-082…

So… I did a thing I'm proud of. Grateful to @TheWHN for publishing my piece: "Stuck in the Middle with Masking: Playing the Long Game in a Short-Sighted Age." It’s about masking at work, staying true to long-term health, and navigating a world that often pulls in the wrong direction. If you’ve ever felt caught between clowns to the left and jokers to the right… this one's for you. whn.global/stuck-in-the-midd…