Table 1

Operational definitions of quality measures

Quality measureNumeratorDenominatorExclusions
Brain imagingPatients receiving brain imaging (Brain CT or MRI) within 2 days of index eventTIA patient cohortDied within 2 days of index event
Discharged to hospice within 2 days of index event
Left AMA within 2 days of index event;
Transferred to another non-VA acute care facility within 2 days of index event
Admitted from a non-VA acute care facility
Carotid artery imagingPatients receiving a carotid imaging procedure within 2 days after index event or 6 months before the index eventTIA patient cohortDied within 2 days of index event
Transferred to another non-VA acute care facility within 2 days of index event
Discharged to hospice
Patients who left against medical advice within 2 days of index event
High or moderate potency statinPatients who receive statin therapy within 7 days after discharge (with >1 day of supply) defined as follows:
≤75 years of age: high potency statin
>75 years of age: moderate or high potency statin
TIA patient cohortTransferred to another non-VA acute care facility
Patients who died during the hospital stay or during ED visit
Patients who left against medical advice
Patients discharged to hospice
Patients with allergy to statin therapy
AntithromboticsPercent of patients with TIA or minor stroke who receive antithrombotic therapy within 7 days after discharge (with an outpatient supply >1 day)TIA patient cohortDied during hospital stay
Discharged to hospice
Transferred to another non-VA acute care facility
Patients who left against medical advice
Patients with an allergy to antithrombotic medication
Patients who receive tPA within 2 days of discharge
  • AMA, against medical advice; ED, emergency department; TIA, transient ischaemic attack; tPA, tissue plasminogen activator; VA, Veterans Affairs.