Patients | Number | |
---|---|---|
True positive, patients classified by AMPDS as having chest pain with confirmed ACS; true negative, patients classified to an AMPDS criteria other than chest pain who did not have an ACS; false positive, patients classified by AMPDS as having chest pain but without evidence of an ACS; false negative, patients classified to an AMPDS code other than chest pain who were subsequently proven to have an ACS. | ||
Patients with ACS | ||
True positive | 187 | |
False negative | 76 | |
Total | 263 | |
Patients with ACS | ||
False positive | 3181 | |
True negative | 39 213 | |
Total | 42 394 | |
Total emergency (‘999’) calls | 42 657 |