On: Marijuana users more prone to infections after knee, shoulder surgeries

[Spivak]

There are ~1 mil of these kinds of surgeries annually a 1% increase is 10,000 infections that could be prevented by just telling patients not to smoke for a bit. This should be touted as a huge win. Correlation and effect size are independent. You can have extremely strong correlation but a small effect size.

[obpe → Spivak]

Yeah, except there were only 22,000 cannabis users so it's actually 220 people, not 10,000.

[lostlogin → obpe]

That’s still good data and an awful lot of pain, suffering, time and money.