This piece presents relative benefits of aspirin for men and women without providing similar context of the risks from daily aspirin use. And the piece provides no absolute figures – only relative. So, for example, it says that “in women, aspirin reduces the rate of stroke blood clots in the brain, the most common type, by 24 percent….in men the daily aspirin cuts heart attack risk by 32 percent.” But 24 percent of what? And 32 percent of what? The journal article upon which the story is based did state the absolute values for both benefits and risks. Those absolute values show that, over about a six and half year period, daily aspirin is predicted to result in 2 fewer strokes and 2.5 more major bleeds per 1000 women; and 8 fewer heart attacks and 3 more major bleeds per 1000 men. To many viewers, those numbers will mean more than 32% or 24%. This meta-analysis of retrospective studies did find that aspirin had different beneficial cardiovascular effects for men and women, and aspirin use was associated with significant bleeding risk for both men and women. When reporting on therapeutic claims, journalists should present the chances for benefit and for harm, and it should be presented in absolute terms, not just in relative terms.
Cost said to be ‘cheap’ but no actual figure of cost was provided.
Presented relative risk reductions only; the study upon which the story is based provided calculation of absolute risk reduction, but the story didn’t use it.
Harms of treatment mentioned without providing estimate for size of that increased risk.
No mention was made that the study reported on was a meta-analysis, retrospective research by definition. What was the quality of the evidence?
Quickie consumer soundbite saying that taking a daily aspirin was an insurance policy. The only expert quoted was first author of the study.
No mention was made of other means to reduce cardiovascular risk.
States that treatment is readily available. Neglects to mention that it is an over-the-counter medication, but most folks know this.
This is not a novel treatment. Article points out that aspirin has been in use clinically for 200 years.
Systematic, Criteria-Driven
Monday at #ADA2021, an infectious disease epidemiologist, a journalist, and a researcher shared perspectives on communication of risk in the era of COVID-19: http://ow.ly/ROfR30rMeE7 @AstleyCM @garyschwitzer @berthahidalgo @ADA_DiabetesPro
Shoutouts to @susan_bewley @drkevinknopf @MichaelBaum11 in this call for more than fawning coverage from press releases for these kinds of stories.
Also, linked history inside goes back 5 years just on Grail apparently trying to become Holy Grail. https://twitter.com/garyschwitzer/status/1408849696416841731
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