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documentation:cdm:observation_period [2014/12/02 01:52] jduke |
documentation:cdm:observation_period [2017/09/25 15:00] (current) clairblacketer |
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- | ===== OBSERVATION_PERIOD ===== | + | ===== OBSERVATION_PERIOD table ===== |
+ | **THIS IS OUTDATED. All documentation is now on the [[https://github.com/OHDSI/CommonDataModel/wiki|github wiki]]. Please refer there or to the [[projects:workgroups:cdm-wg|CDM working group]] for more information** | ||
The OBSERVATION_PERIOD table contains records which uniquely define the spans of time for which a Person is at-risk to have clinical events recorded within the source systems, even if no events in fact are recorded (healthy patient with no healthcare interactions). | The OBSERVATION_PERIOD table contains records which uniquely define the spans of time for which a Person is at-risk to have clinical events recorded within the source systems, even if no events in fact are recorded (healthy patient with no healthcare interactions). |