Table 2.
Univariate comparison of quality measures and rates of resource utilization among different AMI cohorts
| ICD-10 | DRG | *T1MI-UCH | *ICD10-UCH | *DRG-UCH | |
|---|---|---|---|---|---|
| Total n | 1935 | 662 | 425 | 525 | 258 |
| Outcome measures | |||||
| 1 year mortality | 168 (8.7%) ref |
147 (22.2%) p<0.001 |
44 (10.4%) ref |
53 (10.1%) p=0.134 |
61 (23.6%) p<0.001 |
| 30 day mortality | 51 (2.64%) ref |
47 (7.1%) p<0.001 |
7 (1.7%) ref |
8 (1.5%) p=0.078 |
13 (5.0%) p=0.013 |
| 90 day readmission | 365 (18.9%) ref |
171 (25.8%) p=0.016 |
93 (21.9%) ref |
114 (21.7%) p=0.236 |
68 (26.4%) p=0.445 |
| 30 day readmission | 269 (13.9%) ref |
123 (18.6%) p=0.065 |
62 (14.6%) ref |
76 (14.5%) p=0.454 |
45 (17.4%) p=0.719 |
| Medications administered | |||||
| Aspirin | 1916 (99.0%) ref |
622 (94.0%) p<0.001 |
424 (99.8%) ref |
519 (98.9%) p=0.992 |
235 (91.1%) p<0.001 |
| P2Y12 inhibitors | 1579 (81.6%) Ref |
295 (44.6%) p<0.001 |
340 (80.0%) ref |
393 (74.9%) p=0.846 |
98 (38.0%) p<0.001 |
| High-dose Statin | 1790 (92.5%) ref |
531 (80.2%) p<0.001 |
407 (95.8%) ref |
500 (95.2%) p=0.923 |
219 (84.9%) p<0.001 |
| Beta Blocker | 1804 (93.2%) ref |
553 (82.5%) p<0.001 |
401 (94.4%) ref |
477 (90.9%) p=0.940 |
197 (76.4%) p<0.001 |
| Process measures | |||||
| Length of Stay | 4.03 days ref |
3.88 days p=0.059 |
5.81 days ref |
5.79 days p=0.448 |
4.88 days p=0.054 |
| Echocardiography | 1294 (66.9%) ref |
421 (63.6%) p=0.052 |
218 (51.3%) ref |
271 (51.6%) p=0.551 |
122 (47.3%) p=0.209 |
| Stress Test | 24 (1.2%) ref |
33 (5.0%) p<0.001 |
9 (2.1%) ref |
20 (3.8%) p=0.879 |
30 (11.6%) p<0.001 |
| Cardiac CT | 7 (0.4%) ref |
11 (1.7%) p<0.001 |
3 (0.7%) ref |
4 (0.8%) p=0.288 |
8 (3.1%) p=0.991 |
| Cardiac MRI | 11 (0.6%) ref |
8 (1.2%) p=0.016 |
8 (1.9%) ref |
11 (2.1%) p=0.588 |
7 (2.7%) p=0.332 |
| Cardiac Catheterization | 1262 (65.2%) ref |
217 (32.8%) p<0.001 |
282 (66.4%) ref |
323 (61.5%) p=0.818 |
81 (31.4%) p<0.001 |
| Cardiac rehabilitation referral | 1118 (57.8%) ref |
148 (22.4%) p<0.001 |
68 (16.0%) ref |
79 (15.0%) p=0.981 |
17 (6.6%) P<0.001 |
*
Part of a subgroup analysis of all patients cared for at the University of Colorado Hospital (UCH).
Abbreviations: CT = computed tomography; MRI = magnetic resonance imaging; DRG = diagnosis related group; ICD-10 = international classification of diseases, 10th revision; T1MI = Type 1 myocardial infarction