NPR and many other news outlets are reporting that brain injury rates have increased in cities with bike-share programs. The implication is that these bikeshare riders are not riding with helmets, and getting brained. That is the conclusion of a paper published by Dr. Janessa Graves of Washington State University.
And yet the data in the paper showed the exact opposite. Total number of head injuries in cities with bikeshare declined significantly — despite an increasing number of bicyclists. All that changed was that there was a marginal increase in the proportion of injuries that were head related. However, the paper can’t ascertain whether those head injuries had anything to do with bikeshare, or even whether those injured were wearing helmets.
This is the worst kind of junk science. While it is understandable that journalists could be fooled by this bullshit, how did this paper ever pass peer review?