Group | Reference standard (chart review) | Standard definition* n = 290 | ECG definition† n = 289 | |||||||
---|---|---|---|---|---|---|---|---|---|---|
No. of patients | Agreement, % | No. of patients | Agreement, % | |||||||
STEMI | Non-STEMI | STEMI | Non-STEMI | STEMI | Non-STEMI | STEMI | Non-STEMI | STEMI | Non-STEMI | |
Overall | 143 | 147 | 132 | 158 | 92.3 | 100.0 | 131 | 158 | 91.6 | 100.0 |
Women | 46 | 55 | 40 | 61 | 87.0 | 100.0 | 41 | 60 | 89.1 | 100.0 |
Men | 97 | 92 | 92 | 97 | 94.8 | 100.0 | 90 | 98 | 92.8 | 100.0 |
Age < 65 yr | 82 | 67 | 81 | 70 | 98.8 | 100.0 | 79 | 69 | 96.3 | 100.0 |
Age ≥ 65 yr | 61 | 80 | 51 | 88 | 83.6 | 100.0 | 52 | 89 | 85.2 | 100.0 |
Note: ECG = electrocardiogram, MI = myocardial infarction, STEMI = ST-elevation MI.
*I21.0-3 for STEMI v. I21.4x for non-STEMI.
†R94.30 ("ECG suggestive of STEMI") v. R94.31 ("ECG suggestive of NSTEMI"). n = 289 because the chart review for the ECG definition is missing 1 male patient under 65 years of age.