Posts Tagged ‘correlation’

Does Reducing Screen Time Reduce Obesity?

March 21, 2022 — It seems pretty clear. Increased screen time correlates with a higher risk of obesity. In children and teens, for example, a recent systematic review and meta-analysis told us the risk goes up by two thirds with more than two hours daily. Recent prospective research links high screen time with BMI going higher a year later. […]

Magical Measures from BMJ to Prevent COVID-19

April 22, 2021 — Call us quaint. But we believe medical journals should publish research grounded in facts and evidence. Not speculation. Especially in the midst of a pandemic that has taken the lives of more than three million people around the world. BMJ, though, has a different approach. This week the BMJ group has a paper promoting magical […]

Can Money Buy a Community Less Obesity?

March 20, 2021 — Some time ago, the Beatles told us that money can’t buy us love. Now a new study from Molly Martin at Penn State suggests that it also may not buy a community less obesity. Martin is a researcher with a keen interest in social inequality, families, and child well-being. Her research examines data from a […]

The “Body” of Research About Scary Diet Drinks

October 27, 2020 — Just in time for Halloween, JACC has published another scary study about diet drinks. The study finds an association with cardiovascular disease. It’s great fuel for the health news machine, but not so helpful for informing people about real health risks. CNN says this is part of a “growing body of research” suggesting something scary […]

Can’t Get Enough of Those Correlations

December 24, 2019 — We see a pattern. Take a look at the list of the top attention-getting stories on the JAMA network for 2019. Because if you do, you will see that most of them are about correlations. Or associations. Or links. In other words, they’re not about experimental evidence of causality or effects. It seems that we […]