Check if one year before there was an ICU admission

[Isaamarod]

Prerequisites

• [ X] Put an X between the brackets on this line if you have done all of the following:
  • Checked the online documentation: https://mimic.mit.edu/
  • Checked that your issue isn't already addressed: https://github.com/MIT-LCP/mimic-code/issues?utf8=%E2%9C%93&q=

Description

Hello,

I am trying to find out if a patient has been admitted to the ICU at least one year before a given stay_id but because of the way the dates are anonymised I don't know if it is possible. Also, I would like to be able to do it from 30 and 90 days before a given stay_id.

Thanks in advance, Isabel

[Isaamarod]

I found the answer in the official documentation: _Finally, date and times were shifted randomly into the future using an offset measured in days. A single date shift was assigned to each subjectid. As a result, the data for a single patient are internally consistent. For example, if the time between two measures in the database was 4 hours in the raw data, then the calculated time difference in MIMIC-IV will also be 4 hours. Conversely, distinct patients are not temporally comparable. That is, two patients admitted in 2130 were not necessarily admitted in the same year.

https://physionet.org/content/mimiciv/2.2/