But they are analysing data from 2002 and from having a 2% increase year on year it suddenly dropped 12% in the first year following the smoking ban.
Please explain to me what drastic improvement in detection rates leading to better preventative measures happened suddenly in 2007?
For a start this doesn't say anything about lowering asthma, just lowering asthma attacks with a severity that needs a trip to hospital.
Secondly I have no idea, as we are talking generally about trend not probing a causation. I have no idea what the detection rate over the last decade is, I have no idea about what and when new medicines/inhalers where introduced that could reduce sever reactions. We also have little idea about other triggers, but air poupltion as well as water pollution have been declining. Then has there been any new guidlines which can affect the results.
I bet you don't know any off these either.
As said correlation does not equal causation, or do we need some more pirate charts.
Not that I disagree totally, smoking is a trigger for asthma, which means less smoke, less chance of a trigger. It can't really be used as a support for the ban as a whole though, as there's so many ways a ban can be issued. For a start going to a pub is personal choice, where public buildings are a different matter.
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