Table 1 The concept-standardized process in OHDSI (Measurement and Observation as examples)
Variable name from EHR | OHDSI_concept_id | Domain | Vocabulary | CODE | Standard name in OHDSI |
|---|---|---|---|---|---|
RBC | 3,035,569 | Measurement | LOINC | 5171–4 | Red Blood Cell/erythrocyte |
HGB | 3,035,970 | Measurement | LOINC | 2283–0 | Hemoglobin Denver [Presence] in Blood |
CA125 | 45,422,082 | Observation | READ | 44a6.00 | CA123_level |
BMI | 4,245,997 | Observation | SNOMED | 60,621,009 | Body mass index |