Figure 1: Organization of patient tracking information. | Scientific Data

Figure 1: Organization of patient tracking information.

From: The eICU Collaborative Research Database, a freely available multi-center database for critical care research

Figure 1

Each patient is identified by a unique integer: the uniquePid. For each uniquePid, a patient may have distinct hospitalizations denoted by patientHealthSystemStayId. Finally, for each hospitalization, a patient may have distinct unit stays, denoted by patientUnitStayId. patientUnitStayId is the primary identifier used for linking data across tables.

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