Table 3.

Relative Odds of Mortality for Patients With Acute Myocardial Infarction (AMI) by Hospital Teaching Status, Compared With Nonteaching Hospitals, for Patient Severity Groups, 1997–2002^*

Hospital teaching status†	Low-risk patients		Medium-risk patients		High-risk patients
	Odds ratio (OR)	95% confidence interval (CI)	OR	95% CI	OR	95% CI
Minor teaching	0.91‡	(0.88–0.94)	0.96‡	(0.94–0.98)	1.00	(0.98–1.02)
Major teaching	1.01	(0.96–1.07)	1.02	(0.98–1.06)	0.98	(0.94–1.02)

^*Model adjusts for patient age, sex, incidence of previous AMI, number of admissions in prior six months, 27 Elixhauser comorbidities, anatomical location of AMI, and year dummies. This figure is derived from a model in which we estimate odds of mortality for minor and major teaching hospitals (versus nonteaching hospitals), comparing the degree to which mortality differs for patients of different underlying severity. Low-risk patients include deciles 1–3, medium-risk patients include deciles 4–7, and high-risk patients include deciles 8–10.

^†A hospital’s teaching intensity was determined by its ratio of residents to beds (RB). Minor teaching: 0 < RB < 0.25; major teaching: RB = 0.25.

^‡P < .01.