09-27-2014 01:03 PM
Please let me know if anyone has prior experience in checking balance of covariates for 1:3 matching using SAS. I want to perform signed rank test and McNemar's test on the matched cohort. I am aware of the method to check balance in 1:1 matching, however checking 3 controls against 1 case is something new to me and I haven't had any prior experience with that. I tried to use a macro "A SAS® Macro to Evaluate Balance after Propensity Score Matching" however it is giving me an error out of memory error.
Any help on your part will be greatly appreciated. I am looking for a SAS code to check balance in 1:3 matched cohort.