https://communities.sas.com/t5/SAS-Procedures/Proc-STDRATE/m-p/233306#M54812 <P>Can anyone tell me briefly about the output from proc STDRATE when using the GAMMA method. How do the methods and results compare&nbsp;to the methods and results produced when using the Inverse Gamma&nbsp;function. I am performing age standardized rate calculations with 95% CI calculations.</P><P>&nbsp;I know this is a bit obtuse, but my background is general application development as opposed to statistics.</P><P>Thanks in advance.</P> Thu, 05 Nov 2015 19:20:26 GMT JLN 2015-11-05T19:20:26Z https://communities.sas.com/t5/SAS-Procedures/Proc-STDRATE/m-p/233306#M54812 <P>Can anyone tell me briefly about the output from proc STDRATE when using the GAMMA method. How do the methods and results compare&nbsp;to the methods and results produced when using the Inverse Gamma&nbsp;function. I am performing age standardized rate calculations with 95% CI calculations.</P><P>&nbsp;I know this is a bit obtuse, but my background is general application development as opposed to statistics.</P><P>Thanks in advance.</P> Thu, 05 Nov 2015 19:20:26 GMT https://communities.sas.com/t5/SAS-Procedures/Proc-STDRATE/m-p/233306#M54812 JLN 2015-11-05T19:20:26Z https://communities.sas.com/t5/SAS-Procedures/Proc-STDRATE/m-p/233380#M54822 Gamma refers to the calculation for the CI not the rate. Though it's only applicable when you select a method = DIRECT or MH. <BR /><BR />The SAS documentation contains 2 links to papers that detail how the Gamma method is calculated. Here's one below:<BR /><A href="http://www.ncbi.nlm.nih.gov/pubmed/17260923" target="_blank">http://www.ncbi.nlm.nih.gov/pubmed/17260923</A> Fri, 06 Nov 2015 03:29:18 GMT https://communities.sas.com/t5/SAS-Procedures/Proc-STDRATE/m-p/233380#M54822 Reeza 2015-11-06T03:29:18Z