This case-sensitive code system http://terminology.hl7.org/CodeSystem/variable-role
defines the following codes:
Code | Display | Definition |
population | population | variable represents a population. |
subpopulation | subpopulation | variable represents a subpopulation. |
exposure | exposure | variable represents an exposure. |
referenceExposure | reference exposure | variable represents a reference exposure. |
measuredVariable | measured variable | variable represents a measured variable. |
confounder | confounder | variable represents a confounder. |