Using a list of procedures, I would like to find the number of patients seen each month. I have data that looks like this:
Patient Procedure Type Month Procedure Occured
A Mammogram Jan
A CBE Feb
B Mammogram March
C Mammogram Jan
C CBE Jan
C Ultrasound Feb
What would be the simplest way to get the number of distinct patients seen each month. I want to get this output:
Month Number of Distinct Patients
Jan 2 [Patient A and C]
Feb 2 [Patient A and C]
March 1 [Patient B]
proc sql would be one of many ways:
proc sql;
create table want as
select Month_Procedure_Occured as month,
count(distinct patient) as Number_of_Distinct_Patients
from have
group by Month_Procedure_Occured
;
quit;
Awesome! Thank you, Arthur!
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