While there was no mention of coffee cost, this element is not particulary germane to this story. The article reported that drinking four eight-ounce cups of coffee was linked to a 30% reduction in the risk of developing diabetes. Rather than relative reduction, the article should have included the absolute reduction. The rate at which women who drank coffee developed type II diabetes was 6.05% while the rate in women who drank 4-5 cups of coffee per day was 4.30%. The relative difference always sounds more convincing; the absolute difference is what is probably most meaningful to viewers. So, in this case, a 30% relative difference equated to an absolute difference of less than 2%. There was no mention of potential harms that might be derived from increased coffee consumption. The article could have included concern about disrupted sleep, heart palpitations, increased urinary frequency, and jitteriness. Because of the design of the study covered in this story (a prospective epidemiologic study), it is not possible to conclude that increasing decaffeinated coffee consumption will decrease the risk of type II diabetes. This important point was covered by one of the physician quotes in the story. The speculation about what was in decaf coffee that resulted in the decreased risk of type II diabetes was not well grounded. Other than painting perhaps a little too rosy picture of all the potential benefits that might be gained from coffee consumption, this article did not practice disease mongering. It did not present any data on the prevalence of type II diabetes. The story could have mentioned that the Type II diabetes has become rather common place and is a public health issue. It appears that this story is based on a research study in the Archives of Internal Medicine and from comments by one physician and one researcher. It certainly would have been better to actually mention where the study was published rather than referring to it as “the study out today”. It would also have been better to give us some perspective about the value of the quotes provided by giving some background on the two people interviewed. Nonethless, we credit the story for having different perspectives. There was no mention of other lifestyle strategies that an individual might pursue in order to lower the risk of type II diabetes. This is a particularly important public health message. Moderate daily physical activity, such as walking, has also been shown to lower the risk of type II diabetes. The story isn’t about a treatment per se, but about the effects of drinking coffee, which is readily available to all. The story is quite clear about the widespread availability and use of coffee. There is a growing body of literature suggesting that coffee drinking can lower one’s risk of type II diabetes. This story covered the latest such evidence, and made it clear that this is part of a growing body of “more intriguing evidence.” There is no evidence that this story relied solely or largely on a news release.
Coffee found to reduce risk of diabetes