Need help generating a dataset for a specific time period.

[allen-ajith]

Hello, I’m trying to export patient data with exactly 4 years of encounter history. I’ve tried setting exporter.years_of_history = 4 in the properties file and also used the command line argument --exporter.years_of_history=4, but I still see some encounters or observations outside this range.
Is there a way to strictly limit the exported data to only encounters and observations from the last 4 years?

I'm using the command

java -jar synthea-with-dependencies.jar -p 1000 "New York" "New York"
--exporter.csv.export=true
--exporter.fhir.export=false
--exporter.years_of_history=3

[jawalonoski]

No. The years of history is not strict, it will include clinically active concepts outside the time window.

So for example, if a patient has active diabetes and hypertension from 5 years ago, they will be included, as well as current medications they are taking for them.

If you need it to be strict, you have to post-process the data yourself.