I have data on surgeries, every row represent a patient with a performed surgery. I wish to answer the question: How many procedures has this surgeon performed in the last year (at that time of the surgery)?
Here is some example data:
DATA LIST LIST / patient_id (A20) operator_id (A20) procedure_date (SDATE10).BEGIN DATA.1,pseudo_001,2024/02/012,pseudo_002,2024/07/113,pseudo_002,2023/08/104,pseudo_003,2024/03/015,pseudo_004,2024/08/016,pseudo_004,2024/07/027,pseudo_004,2024/01/158,pseudo_003,2023/01/19END DATA.It is an easy task to create a variable with the date 1 year back:
COMPUTE procedure_date_1yback=DATESUM(procedure_date, -1, "years", 'closest').VARIABLE LEVEL procedure_date_1yback(SCALE).FORMATS procedure_date_1yback(SDATE10).VARIABLE WIDTH procedure_date_1yback(11).EXECUTE.But from here I am lost. I have managed to get the amount of performed procedures at the "year" before using AGGREGATE on both operator and the "year".
Here is how I would like it to be:
DATA LIST LIST / patient_id (A20) operator_id (A20) procedure_date (SDATE10) performed_procedures (A20).BEGIN DATA.1,pseudo_001,2024/02/01,12,pseudo_002,2024/07/11,23,pseudo_002,2023/08/10,14,pseudo_003,2024/03/01,15,pseudo_004,2024/08/01,36,pseudo_004,2024/07/02,27,pseudo_004,2024/01/15,18,pseudo_003,2023/01/19,1END DATA.