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date = "2015-09-01T19:34:46-04:00"
title = "The datetimeevents table"
linktitle = "DATETIMEEVENTS"
weight = 20
toc = "true"
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Table source: CareVue and Metavision ICU databases.
Table purpose: Contains all date formatted data.
Number of rows: 4,485,937
Links to:
- PATIENTS on
SUBJECT_ID - ADMISSIONS on
HADM_ID - ICUSTAYS on
ICUSTAY_ID - D_ITEMS on
ITEMID - CAREGIVERS on
CGID
Table columns
| Name | Postgres data type |
|---|---|
| ROW_ID | INT |
| SUBJECT_ID | INT |
| HADM_ID | INT |
| ICUSTAY_ID | INT |
| ITEMID | INT |
| CHARTTIME | TIMESTAMP(0) |
| STORETIME | TIMESTAMP(0) |
| CGID | INT |
| VALUE | TIMESTAMP(0) |
| VALUEUOM | VARCHAR(50) |
| WARNING | SMALLINT |
| ERROR | SMALLINT |
| RESULTSTATUS | VARCHAR(50) |
| STOPPED | VARCHAR(50) |
Detailed Description
DATETIMEEVENTS contains all date measurements about a patient in the ICU. For example, the date of last dialysis would be in the DATETIMEEVENTS table, but the systolic blood pressure would not be in this table. As all dates in MIMIC-III are anonymized to protect patient confidentiality, all dates in this table have been shifted. Note that the chronology for an individual patient has been unaffected however, and quantities such as the difference between two dates remain true to reality.
SUBJECT_ID, HADM_ID, ICUSTAY_ID
Identifiers which specify the patient: SUBJECT_ID is unique to a patient, HADM_ID is unique to a patient hospital stay and ICUSTAY_ID is unique to a patient ICU stay.
ITEMID
CHARTTIME, STORETIME
CHARTTIME records the time at which an observation was charted, and is usually the closest proxy to the time the data was actually measured. STORETIME records the time at which an observation was manually input or manually validated by a member of the clinical staff.
CGID
CGID is the identifier for the caregiver who validated the given measurement.