Hello! I am studying hospital admissions and readmissions and am trying to figure out how to concatenate two variables so that SAS creates the same value of the variable whether the patient was admitted first to hospital A then hospital B, or first to hospital B then A. The best (clumsy) way I could come up with was to concatenate admission hospital-readmission hospital and then readmission hospital-admission hospital variables in different data sets, merge them, and then add their counts. The issue with this is that I am then double counting admissions. Thanks!
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