omr table

omr

The Online Medical Record (OMR) table stores miscellaneous information documented in the electronic health record. It is a useful source of outpatient measurements such as blood pressure, weight, height, and body mass index.

Table columns

Detailed Description

subject_id

subject_id is a unique identifier which specifies an individual patient. Any rows associated with a single subject_id pertain to the same individual.

chartdate

The date on which the observation was recorded.

seq_num

An monotonically increasing integer which uniquely distinguishes results of the same type recorded on the same day. For example, if two blood pressure measurements occur on the same day, seq_num orders them chronologically.

result_name

Each row provides detail regarding a single observation in the EHR. result_name provides a human interpretable description of the observation. As of MIMIC-IV v2.2, the following table lists the number of observations and the most common value.

result_value

result_value is the value associated with the given OMR observation. For example, for the result_name of ‘Blood Pressure’, the field_value column contains the recorded blood pressure (120/80, 130/70, and so on).