Patient variable language for a longitudinal database

A system comprising:

• a longitudinal database for storing events data;
• and
• a processing device, operatively coupled to the longitudinal database, to:
• receive a query comprising a time period associated with events data comprising attributes associated with events corresponding to a patient, the events data being stored in the longitudinal database;
• generate a data structure comprising a list of keys, wherein the keys represent a time-ordered sequence of the events data;
• identify the data structure in view of the query;
• apply the data structure to the events data to identify attributes associated with the events data;
• generate a plurality of operators to evaluate the events data in view of the attributes, the keys of the data structure, and the time period;
• and
• provide results corresponding to the query by applying at least one operator of the plurality of operators to the data structure, the results comprising a first time-ordered sequence of events corresponding to the patient.

A non-transitory computer-readable storage medium comprising executable instructions that, when executed by a processor, cause the processor to:

• receive a query comprising a time period associated with events data comprising attributes associated with events corresponding to a patient, the events data being stored in the longitudinal database;
• generate a data structure comprising a list of keys, wherein the keys represent a time-ordered sequence of the events data;
• identify the data structure in view of the query;
• apply the data structure to the events data to identify attributes associated with the events data;
• generate a plurality of operators to evaluate the events data in view of the attributes, the keys of the data structure, and the time period;
• and
• provide results corresponding to the query by applying at least one operator of the plurality of operators to the data structure, the results comprising a first time-ordered sequence of events corresponding to the patient.