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I.  The Find Patients View

II.  View Patient Counts

I. The Find Patients View

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The default view on login is the Find Patients tab (1).  Researchers will build and define their patient cohort by selecting and dropping medical concepts (2) into inclusion and exclusion criteria panel (3).  Once defined, they can select various options before searching the network (4). 

1.  Medical Concepts List 

The Medical Concepts List consists of standardized medical billing domains that include diagnosis, procedures, laboratory tests, medications and demographics information and visit details.  There are over 2 million concepts to select from.  To help search and find the concept of choice, this panel contains features to help locate a specific code.

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Click the concept to expand or collapse the folder.

2.  Inclusion and Exclusion Criteria Panel

The Inclusion and Exclusion Criteria panel is how researchers will define their patient population.  After finding medical concept(s), simply drag and terms and drop it into the first group.  
The first group will default to a green inclusion panel.  Toggle to "without" to specify an exclusion panel or toggle to "when" to specify an event based panel  (1).  Additional concepts added to this group will be related to one another by the OR operator (2).  Specify a date range or occurrence (3, 4, 5).  Date ranges can start, end, or occur between selected dates (4).  View the code within its relational hierarchy (6).  Delete an individual concept from a group (7) or delete an entire group (8).  Additional groups will automatically appear below, connecting each group by the AND relational operator (9).  Clear out the entire panel with "Clear All" button (10). 

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Click the info icon next to a concept to view its relational hierarchy 

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3.  Event Based Panel

The event based panel allows researchers to construct a patient cohort with a sequence of events, where event A occurs before event B.  To specify an event based panel, toggle to select the "when" radio button (1).  The event panel must contain 

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contains 2 and only 2 events (2, 3).  Each event must contain at least 1 concept.  A researcher can specify the time gap between the two events (4, 5).  An event based panel contains a clock icon to signify that it is a sequence based panel (6).  

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See examples of event based patient cohort at the end of this document.

4.  Start Query Panel

After defining the inclusion and exclusion panel, 

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