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. Author manuscript; available in PMC: 2014 Dec 24.
Published in final edited form as: Circulation. 2013 Oct 23;128(25):2754–2763. doi: 10.1161/CIRCULATIONAHA.113.004074

Table 1. Characteristics of patients admitted with AMI to U.S. teaching-intensive and non-teaching-intensive hospitals, 2002-2008.

Teaching-intensive hospitals Non-teaching-intensive hospitals
May July May July
No. of hospitals 98 98 1353 1353
No. of patients with AMI 7073 6810 31932 30402
Mean patient age, y (sd) 66.3 (14.1) 66.0 (14.2) 68.8 (14.7) 68.3 (14.8)
Female, No. (%) 2702 (38.2) 2658 (39.0) 13112 (41.1) 12433 (40.9)
Race, No. (%)
White 4278 (60.5) 4068 (59.7) 18072 (56.6) 17188 (56.5)
Black 629 (8.9) 573 (8.4) 1601 (5.0) 1586 (5.2)
Hispanic 441 (6.2) 450 (6.6) 1272 (4.0) 1227 (4.0)
Other or unknown 1725 (24.4) 1719 (25.2) 10987 (34.4) 10401 (34.2)
Mean No. Charlson-Deyo comorbidities (sd) 2.4 (1.5) 2.4 (1.6) 2.5 (1.6) 2.4 (1.6)
Deaths, No. 398 429 2547 2374
Mortality rate, % (95% CI) 5.6 (5.1 - 6.2) 6.3 (5.7 - 6.9) 8.0 (7.7 - 8.3) 7.8 (7.5 - 8.1)
Predicted mortality rate, Mean % (95% CI) 6.9 (6.7 - 7.1) 6.8 (6.6 - 7.0) 7.8 (7.7 - 7.9) 7.5 (7.4 - 7.6)
No. patients with PCI (%) 3269 (46.2) 3165 (46.5) 12472 (39.1) 12191 (40.1)
No. patients with bleeding complications (%) 764 (10.8) 758 (11.1) 2219 (6.9) 2119 (7.0)

Notes: Teaching-intensive hospitals were defined as teaching hospitals with a ratio of resident physicians to hospital beds of more than 0.6. Non-teaching-intensive hospitals were defined as all other hospitals. Predicted mortality was based on a validated risk-adjustment tool from the Agency for Health care Research and Quality.