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Exposure
Robert Miller edited this page Apr 3, 2018
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TODO: Brief description of table purpose.
Field | Required | Type | Description |
---|---|---|---|
exposure_id | Yes | integer | A system-generated unique identifier for each exposure event. |
person_id | Yes | integer | A foreign key to the Person who is subjected to the exposure. |
exposure_concept_id | Yes | integer | A foreign key to the standard exposure concept identifier in the Standardized Vocabularies. |
exposure_start_date | Yes | date | The date the exposure started. |
exposure_end_date | No | date | The date the exposure ended. |
value_as_number | No | float | The exposure value stored as a number. |
value_as_concept_id | No | integer | A foreign key to a exposure value represented as a Concept from the Standardized Vocabularies. |
value_source_value | No | varchar(50) | The source value associated with the content of the value_as_number or value_as_concept_id as stored in the source data. |
unit_concept_id | No | integer | A foreign key to a Standard Concept ID of Measurement Units in the Standardized Vocabularies. |
unit_source_value | No | varchar(50) | The source code for the unit as it appears in the source data |
exposure_source_concept_id | No | integer | A foreign key to a Concept in the Standard Vocabularies that refers to the code used in the source. |
exposure_source_value | No | varchar(50) | The Exposure name as it appears in the source data. |
data_source_id | No | integer | A foreign key to the data_source which the exposure is derived from. |
link_operator_concept_id | No | integer | TODO |
link_scope_concept_id | No | integer | TODO |
link_numeric_qualifier | No | float | TODO |
link_source_value | No | varchar(50) | TODO |
- TODO
- Brief description: What it accomplishes, conjunction of operator, scope and numeric qualifier, etc
Example | Operator | Scope | Numeric_Qualifier |
---|---|---|---|
Average of nearest 3 measurements | Mean | nearest (x) | 3 |
Number of facilities within 5 miles | Count | within miles (x) | 5 |
Name | Description |
---|---|
Mean | Average |
... | ... |
Name | Description |
---|---|
Nearest (x) | The X closest locations to the individual's locaton |
... | ... |
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