You are reading a single comment by @PhilPub and its replies.
Click here to read the full conversation.
-
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
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