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Head injuries are not the rare event you want to think they are
Fermi estimate time. Let's say for the sake of argument that your aans.org link is a proxy for UK stats, and the hospital admissions is a proxy for KSI. About 1 in 6 hospital admissions among cyclists in your study is for a head injury. UK cycling KSI rate is about 1 per 500,000 journeys. That makes head injuries worthy of hospital treatment about 1 per 3M journeys, or 3×10-7 per journey.
I leave it to the reader to decide whether that makes cycling related head injuries rare or commonplace. If you bought two tickets for the National Lottery, your probability of winning either the jackpot or the second prize is also about 3×10-7
gbj_tester-
That makes head injuries worthy of hospital treatment about 1 per 3M journeys, or 3×10-7 per journey... I leave it to the reader to decide whether that makes cycling related head injuries rare or commonplace. If you bought two tickets for the National Lottery, your probability of winning either the jackpot or the second prize is also about 3×10-7
This is going on my fridge.
PhilPub
Head injuries are not the rare event you want to think they are as % of cyclists who are hospitalised.d
Source 1:
https://www.aans.org/en/Patients/Neurosurgical-Conditions-and-Treatments/Sports-related-Head-Injury
Source 2:
https://www.bmj.com/content/346/bmj.f2674
(amongst others)
You continue to fail to respond to the points I've made, continuing to satisfy yourself with this endless cry of helmets put people off cycling.
So I'll argue against that- just this once- as evidenced by the follow-on resurgence of cycling in Australia, Canada and other places with compulsory helmet laws.
http://www.publish.csiro.au/he/HE11178
(amongst others).
The data supports helmets reduce head injuries. Again- I'm not arguing that long term inactivity is not more of a problem, just that helmets work. I have literally never suggested (and I cannot beleive I'm saying this again ) that helmets should be mandatory.
And if we're all honest- Helmet or no is not going to change inactivity levels in a wider spectrum of the population.
I anticipate waking up to you arguing a completely different point, yet again. Enjoy. xxx