Reserved Words With Special Meaning To Phenotypers

This document is a DRAFT guidance.

Key words

Key words	Interpretation
Entry Event	A person may enter the cohort because of
Exit Event	A person may exit the cohort because of
Event Cohort
Indexed on	The entry event criteria may appear semantically different from the clinical idea being proposed. E.g. cases of pneumonia may be indexed on antibiotic dispensation
Clean window	refers to the context of every entry event
First Time	Always refers to first time in Persons History
Era logic
Persistent window

Words used in the context of phenotype evaluation should not be in name: e.g. sensitive, specific, narrow, broad