Physician and Patient Influences on Provider Performance.

The article discusses a study which examined the impact of physician and patient level characteristics on variability in providing Β-blockers to ambulatory postmyocardial infarction (MI) patients. Mixed-effects models were used to assess associations of Β-blocker prescription with physician- and patient-level characteristics. Results showed that prescription varied with comorbidity from 78.3% in patients with chronic kidney disease to 54.7% for patients with stroke.