3 ms·
They obvious control for these factors. They actually report that the effects are stronger at lower temperature.
by rockinghigh 7y ago
They obvious control for these factors. They actually report that the effects are stronger at lower temperature.
- mcbits 7y agoStatistical controls can remove much of the effect from known confounders, but they don't turn an observational study into a controlled experiment. Sometimes you can use common sense to infer a causal relationship (violent crime linked to emergency room visits), but it seems like a leap here, especially as they're on a bit of a fishing expedition with multiple types of pollution and multiple types of crime.