Example: I need to join the 2016 (made up of 100 hospitalizations), 2017 (made up of 200 hospitalizations), and 2018 (made up of 300 hospitalizations) datasets. I am looking at the diabetes, COPD, and CVD variables (which have the same variable name across the datasets). So my end product/dataset would be 2016-2018 datasets combined with a total of 600 hospitalizations. After this new dataset was created, I would be able to run a proc freq statement by whether or not any of those 600 hospitalizations between 2016-2018 were for diabetes, COPD, or CVD.
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