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Small-Scale Question Sunday for September 8, 2024

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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Do trampoline nets reduce the incidence of serious injuries? (I don't really care about minor injuries like sprained ankles).

This study states that, of children taken to hospital due to trampoline injuries, there was no difference between those whose trampolines had nets and those who did not in terms of the percentage who received severe injuries. Therefore

There is no difference in the severity of the injury regarding trampolines with or without special safety measures. Safety nets do not reduce the risk of severe injury.

But reading it makes me think of this famous picture about selection bias. Could it simply be that many children who would have received injuries, serious or not, didn't get injured because their trampoline had a net?

The again, this study suggests that the introduction of safety features like nets and pads didn't actually make any difference in the number of different categories of injury (at least during the study period). Amazingly, this includes falling off, which you'd think is the one thing that nets would prevent.

I grew up with a net-less trampoline (although it did have cushions covering the springs) and I'd like my kids to enjoy the same, but I can imagine my wife being pretty pissed off if we get an old-fashioned trampoline and someone breaks an arm. I'm not sure how amenable she'd be to the 'risky play is necessary for healthy psychological development' argument if our child has a bone sticking out of his arm.

I grew up with a trampoline without a net. Never did me no harm.