topic Re: Relative Risk for Small Sample in Statistical Procedures https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530106#M26759 <P>Yes</P> Fri, 25 Jan 2019 16:07:12 GMT taishayla 2019-01-25T16:07:12Z Relative Risk for Small Sample https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530098#M26757 <P>Any suggestions for which procedure to use for relative risk in which the sample size is small and two-by-two table has 0 values? My table, top to bottom/left to right: 10/0/1/3. I've used the relrisk option with proc freq. Wasn't sure if it may be best to use the logistic model and if the firth option would best handle this. Suggestions are welcomed!</P> Fri, 25 Jan 2019 15:44:30 GMT https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530098#M26757 taishayla 2019-01-25T15:44:30Z Re: Relative Risk for Small Sample https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530103#M26758 PROC FREQ with the EXACT options specified? Fri, 25 Jan 2019 15:59:19 GMT https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530103#M26758 Reeza 2019-01-25T15:59:19Z Re: Relative Risk for Small Sample https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530106#M26759 <P>Yes</P> Fri, 25 Jan 2019 16:07:12 GMT https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530106#M26759 taishayla 2019-01-25T16:07:12Z Re: Relative Risk for Small Sample https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530171#M26761 <P>The results from EXACT RELRISK; in PROC FREQ are what you want. That provides exact results. The Firth method is not an exact method - it just uses a penalized likelihood.</P> Fri, 25 Jan 2019 19:14:50 GMT https://communities.sas.com/t5/Statistical-Procedures/Relative-Risk-for-Small-Sample/m-p/530171#M26761 StatDave 2019-01-25T19:14:50Z