This story hinted at other factors that might explain the statistical association – but didn’t drive home the limitations of an observational study. It also didn’t point out that such a cross-sectional study (the exposure – fasting – and the outcome – coronary artery disease, as measured by angiography – were measured at the same time) can’t draw any conclusions about causality.
Single source stories like this – from a team promoting its current and past line of research – demands independent perspectives. But this story didn’t provide any.
Stories about talks at scientific meetings require caveats because the data has not undergone rigorous peer review.
Stories about observational studies require more explanation and more careful language than provided in this story.
Not applicable. Cost of fasting not an issue.
The story states that “people who fasted regularly had a 58 percent lower risk of coronary disease compared with those who said they didn’t fast.” But 58% of what? The story could have noted baseline risk in the general population or in people diagnosed with coronary heart disease. But even in the latter category, that’s a very wide spectrum of disease. All of which shows how the 58% figure lacks any context for readers.
The only discussion of potential harms of fasting was this: “Any fast should include water because dehydration can raise risk for stroke.” Over what period of time? What’s the evidence base? In what kinds of people? What could happen if people at risk for cardiovascular disease, such as diabetics, fast?
Even the previous line in the story suggests a broader issue than that when it said “fasting is causing some major stress.” What does that mean, and what are the broader implications for potential harms?
Mixed bag, but the negatives outweighed the positives.
Good point:
Followed by a weak point:
The story also never mentioned the inherent limitations in drawing conclusions from a study of 30 people over 24 hours’ time. Nor did it mention that this conference presentation had not yet undergone rigorous peer review.
No independent expert was quoted, something sorely lacking in the story.
Another mixed bag, but with a confusing message that warrants an unsatisfactory grade.
The story points out that one of the limitations in the study may have been that its subjects – Mormons – abstain from alcohol, smoking and caffeine – all factors that could affect heart health.
But later in the story it allows the researcher to say “what it does suggest is that fasting is not a marker for other healthy lifestyle behaviors.”
Huh? That seems to convey some independent protective effect that the study simply can’t prove. And it seems to minimize the other confounding factors acknowledged earlier in the story.
Not applicable. Anyone can fast.
The story at least noted that the same research team published an earlier, larger study in 2008.
The story appears to have included an interview with the researcher, so we think it’s unlikely that it relied solely on a news release.
Systematic, Criteria-Driven
Take all the issues enmeshed in any cancer screening story and amplify it with the liquid biopsy issue. @AP's @CarlaKJohnson. did a solid job here. https://apnews.com/article/science-business-health-hodgkin-lymphoma-oregon-ca899bb9c4c7f1859d4e9ce16a1cf78d
Come on, NY Times; you must do better than this. Important research doesn’t need hype and the “breaking news” BS doesn’t help readers or patients. https://www.healthnewsreview.org/2022/03/nyt-proclaims-breaking-news/
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