Comparison between epidemiological and clinical classifications
| Confirmed MI by classification system | ||||
|---|---|---|---|---|
| Clinical classification | Original NHAR (N=723) | Amended NHAR (N=1224) | MONICA (N=1051) | UKHAS (N=807) |
| Number of cases common to both classifications shown. | ||||
| MI, myocardial infarction; MONICA, monitoring trends and determinants in cardiovascular disease study; NHAR, Nottingham heart attack register; NSTEMI, non-ST-elevation myocardial infarction; STEMI, ST elevation myocardial infarction; UA, unstable angina; UKHAS, United Kingdom heart attack study. | ||||
| STEMI (n=583) | 583 | 583 | 583 | 465 |
| NSTEMI (n=344) | 123 | 344 | 290 | 305 |
| UA (n=153) | 0 | 0 | 0 | 0 |
| Classical angina (n=726) | 0 | 137 | 102 | 0 |
| Other presentations (n=931) | 18 | 160 | 76 | 37 |