# | Column | Type | Notes |
1 | eid | integer | A foreign key identifier to the Person about whom the observation was recorded. |
2 | observation_concept_id | integer | A foreign key to the standard observation concept identifier in the Standardized Vocabularies. |
3 | observation_date | date | The date of the observation. |
4 | observation_datetime | timestamp | The date and time of the observation. |
5 | observation_id | integer | A unique identifier for each observation. |
6 | observation_source_concept_id | integer | A foreign key to a Concept that refers to the code used in the source. |
7 | observation_source_value | string | The observation code as it appears in the source data. This code is mapped to a Standard Concept in the Standardized Vocabularies and the original code is, stored here for reference. |
8 | observation_type_concept_id | integer | A foreign key to the predefined concept identifier in the Standardized Vocabularies reflecting the type of the observation. |
9 | provider_id | integer | A foreign key to the provider in the PROVIDER table who was responsible for making the observation. |
10 | qualifier_concept_id | integer | A foreign key to a Standard Concept ID for a qualifier (e.g., severity of drug-drug interaction alert) |
11 | qualifier_source_value | string | The source value associated with a qualifier to characterize the observation |
12 | unit_concept_id | integer | A foreign key to a Standard Concept ID of measurement units in the Standardized Vocabularies. |
13 | unit_source_value | string | The source code for the unit as it appears in the source data. This code is mapped to a standard unit concept in the Standardized Vocabularies and the original code is, stored here for reference. |
14 | value_as_concept_id | integer | A foreign key to an observation result stored as a Concept ID. This is applicable to observations where the result can be expressed as a Standard Concept from the Standardized Vocabularies (e.g., positive/negative, present/absent, low/high, etc.). |
15 | value_as_number | float | The observation result stored as a number. This is applicable to observations where the result is expressed as a numeric value. |
16 | value_as_string | string | The observation result stored as a string. This is applicable to observations where the result is expressed as verbatim text. |
17 | visit_detail_id | integer | |
18 | visit_occurrence_id | integer | A foreign key to the visit in the VISIT_OCCURRENCE table during which the observation was recorded. |