Hello SAS community, I have one datafile called intervention_dataset, that has assessments completed from 2015-2023 (n=1925), and I am looking to match a pair of assessment outcomes (from different children) between 2015-2020 (n=1225), and 2020-2023 (n= 700) on key variables. I think I can conduct a chi-square using categorical variables, possibly with a 'where' statement, however, I am unsure if I need to create a new dataset or column in order to analyze both reference 'between' dates. Maybe there is a better analytic solution... E.g. of very faulty logic: Proc freq data= intervention_dataset Tables var1 var2 var3 completed between '06MAR2015'd and '16MAR2020'd by var1 var2 var 3 completed between '17MAR2020'd and '06MAR2023'd/chisq; run; Any advice or solutions to creating a new column or coding for 'between' reference dates, or is there a simpler process to above? I am using SAS 9.4. Thank you!
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