- Initial Population =
- AND: Age >= 18 year(s) at: "Measurement Period"
- AND: Union of:
- "Encounter, Performed: Face-to-Face Interaction"
- "Encounter, Performed: Office Visit"
- during "Measurement Period"
- AND: "Diagnosis, Active: Atrial Fibrillation/Flutter" satisfies all
- starts before start of "Measurement Period"
- overlaps "Measurement Period"
- AND NOT: "Diagnosis, Active: Valvular Heart Disease" overlaps "Measurement Period"
- AND: Sum >= 180 day(s) of: "Medication, Active: Warfarin (cumulative medication duration)" starts before start of "Measurement Period"
- AND: "Medication, Active: Warfarin" overlaps "Measurement Period"
- Measure Population =
- AND: Count >= 3 of: "Laboratory Test, Performed: INR (result)" during "Measurement Period"
- Measure Population Exclusions =
- Measure Observation =
- Average of: "Laboratory Test, Performed: INR (result: Computed Value INR percent TTR)" during "Measurement Period"
- Stratification =
- "Diagnosis, Active: Atrial Fibrillation/Flutter" using "Atrial Fibrillation/Flutter Grouping Value Set (2.16.840.1.113883.3.117.1.7.1.202)"
- "Diagnosis, Active: Valvular Heart Disease" using "Valvular Heart Disease Grouping Value Set (2.16.840.1.113883.3.464.1003.104.12.1017)"
- "Encounter, Performed: Face-to-Face Interaction" using "Face-to-Face Interaction Grouping Value Set (2.16.840.1.113883.3.464.1003.101.12.1048)"
- "Encounter, Performed: Office Visit" using "Office Visit Grouping Value Set (2.16.840.1.113883.3.464.1003.101.12.1001)"
- "Laboratory Test, Performed: INR" using "INR LOINC Value Set (2.16.840.1.113883.3.117.1.7.1.213)"
- "Medication, Active: Warfarin" using "Warfarin RXNORM Value Set (2.16.840.1.113883.3.117.1.7.1.232)"
- Attribute: "Result: Computed Value INR percent TTR" using "Computed Value INR percent TTR Grouping Value Set (2.16.840.1.113883.3.464.1003.104.12.1018)"
- "Patient Characteristic Ethnicity: Ethnicity" using "Ethnicity CDCREC Value Set (2.16.840.1.114222.4.11.837)"
- "Patient Characteristic Payer: Payer" using "Payer SOP Value Set (2.16.840.1.114222.4.11.3591)"
- "Patient Characteristic Race: Race" using "Race CDCREC Value Set (2.16.840.1.114222.4.11.836)"
- "Patient Characteristic Sex: ONC Administrative Sex" using "ONC Administrative Sex AdministrativeGender Value Set (2.16.840.1.113762.1.4.1)"