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On 11/10/2024 11:55 AM, Roger Merriman wrote:Catrike Ryder <Soloman@old.bikers.org> wrote:>
To argue against mandatory helmet laws is one thing, but to argue
against someone choosing to wear one is stupid and ugly.
Because it's blasphemy to question the helmet religion?
>
Because no one should ever examine all the relevant data?
Because you, personally, believe parents should not have the right to
make this decision regarding their own children? That is what you said.
As helmets seem to at a population level be statistically insignificant in>
that no effect can be found at population levels.
Absolutely true. Almost all bike helmet propaganda is based on
dishonestly labeled "case-control" studies - dishonest because there's
been solid evidence that the two groups being compared typically varied
in many more ways than helmet use. The most famous example being the
1989 study by Thompson, Rivara and Thompson, in which helmets had been
worn by over 20% of the kids brought to hospitals for bike crashes. That
was at a time when street surveys by the same team found only 3% of kids
were wearing helmets. So helmeted kids were FAR more likely to be
brought in. We could discuss likely reasons why - if this were a more
rational group.
When data (mostly time series data) is examined for entire populations
of cyclists, helmet benefits vanish. In fact, as bike helmets became
more common over the years, bicyclist concussions increased, not decreased.
>
But to me, the biggest fallacy is pretending that the rate of bicycling
brain injury is so extreme that helmets should be recommended, let alone
mandated. There's been propaganda like "You could fall over in your
driveway and die," which is exactly as true as "You could fall while
walking in your home and die." Except that the latter happens far, far
more often than the former. Ditto for fatal brain injuries inside cars.
Yes, despite seat belts and air bags.
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