Atlas cohort definition: No visit that starts at least 2 days prior

Researchers
1

Hello, I have a problem with my ATLAS cohort definition.

I want to define an inclusion criterion that makes sure that I don’t have an inpatient visit that started at least 2 days prior at the same time as a measurement.

That’s what I have so far:
At most 0 inpatient visits that started at least 2 days prior and end at the same day or later.

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However, in my cohort, I have patients that have a visit that started more than two days before the measurement and ends the day after the measurement.
All the wrongly included patients have a visit that ends on the same day or 1 day after the measurement

Does anybody have any suggestions why?

Thank you very much for your help!

2

It seems like there is a problem with the date in the negation because if I change it to ends 1 day before there are less patients wrongly included in the cohort.