Adjusted rates of percutaneous coronary intervention among patients admitted with AMI during May and July, according to teaching-intensive hospital status and predicted inpatient mortality risk. Adjusted rates of PCI for teaching-intensive and non-teaching-intensive hospitals during May and July was estimated from a difference-in-difference logistic regression model which adjusted for patient age, sex, race, AHRQ predicted mortality, and year. The July PCI effect among high risk patients is (19.4 – 19.4) – (13.5 – 13.2) = -0.3 percentage points, p-value = 0.80. The July PCI effect among low risk patients is (52.8 – 52.9) – (49.0 – 48.8) = -0.3 percentage points, p-value = 0.71.