Table 4.
Unadjusted* and Adjusted† Mortality After Acute Myocardial Infarction, Stratified by Physician Board Certification Status
| 30-D Mortality | 1-Y Mortality | |||
|---|---|---|---|---|
| Unadjusted RR (95% CI) | Adjusted RR (95% CI) | Unadjusted RR (95% CI) | Adjusted RR (95% CI) | |
| Family Practice | ||||
| Noncertified | 21.8 | 1.00 (referent) | 36.6 | 1.00 (referent) |
| Certified Family Practice | 19.9 | 0.95 (0.87 to 1.04) | 34.4 | 0.98 (0.92 to 1.04) |
| Internal Medicine | ||||
| Noncertified | 19.8 | 1.00 (referent) | 35.8 | 1.00 (referent) |
| Certified internist | 19.4 | 1.02 (0.97 to 1.07) | 33.8 | 0.98 (0.94 to 1.01) |
| Cardiology | ||||
| Noncertified | 17.9 | 1.00 (referent) | 31.1 | 1.00 (referent) |
| Certified internal medicine | 18.6 | 1.07 (0.97 to 1.19) | 30.6 | 1.01 (0.94 to 1.09) |
| Certified cardiology | 16.2 | 1.03 (0.95 to 1.12) | 26.8 | 0.98 (0.92 to 1.04) |
*
P<0.05 for all unadjusted comparisons of board-certified versus nonboard-certified physicians within physician speciality, except 30-day mortality in internal medicine.
†
Adjusted for patient, physician, and hospital characteristics in 2-level (patient and hospital) hierarchical analysis.
CI, confidence interval; RR, relative risk.