Ratio funnel plot in SAS

[rkilaru]

Hi!

I am wondering if anyone has had experience working with ratio funnel plots. Ratio = Observed Exposure adj. rate / Expected Exposure adj. rate.

From what I understand, exact poisson control limits would have to be generated for the funnel limits centered around the ratio = 1 (Observed exp. adj. rate = expected exposure adj. rate).

Any insights are deeply appreciated.

Thanks, RK

[Doc_Duke]

try this Google search

ratio funnel plot site:sas.com

It yielded a lot of results, some of which may be what you are looking for.