Two-by-two table of observed versus predicted ACS | |||
---|---|---|---|
Rule | ACS present | ACS absent | Sum |
Pred. probability ≥2% (ACS pos.) | 27 | 128 | 155 |
Pred. probability <2% (ACS neg.) | 4 | 27 | 31 |
Sum | 31 | 155 | 186 |
Number of ACS cases versus deciles of predicted probability | |||
Predicted probability of ACS | Number of patients | Number of ACS cases | Â |
0% - <10% | 67 | 5 | Â |
10% - <20% | 27 | 1 | Â |
20% - <30% | 26 | 2 | Â |
30% - <40% | 12 | 4 | Â |
40% - <50% | 11 | 2 | Â |
50% - <60% | 8 | 2 | Â |
60% - <70% | 7 | 2 | Â |
70% - <80% | 8 | 3 | Â |
80% - <90% | 10 | 5 | Â |
90% - <100% | 10 | 5 | Â |