Table 3 Prevalence of events for each level of risk.
Events | Low-risk CHD Score = 0-4 n= 413 | Intermediate-risk CHD Score = 5-7 n= 161 | High-risk CHD Score = 8-11 n= 87 | ||||||
|---|---|---|---|---|---|---|---|---|---|
n | % | (CI 95%) | n | % | (CI 95%) | n | % | (CI 95%) | |
Coronary Heart Disease | |||||||||
Observed | 2 | 0.5% | (0.0 to 1.7) | 20 | 12.4% | (7.8 to 18.5) | 63 | 72.4% | (61.8 to 81.5) |
Prevalence from bootstrapping* | 0.7 (0.6) | 14.6 (10) | 69.4 (16) | ||||||
Validation cohort (N = 774) † | 15/289 | 5.2% | (3.0 to 8.4) | 40/327 | 12.2% | (8.9 to 16.3) | 59/158 | 37.3% | (29.8 to 45.4) |
Acute myocardial infarction | 1 | 0.2% | (0 to1.3) | 1 | 0.6% | (0 to 3.4) | 2 | 2.3% | (0.3 to 8.1) |
Unstable angina | 0 | 0% | (0 to 0.9) | 2 | 1.2% | (0.2 to 4.4) | 4 | 4.6% | (1.3 to 11.4) |
Deaths | |||||||||
Overall | 4 | 1.0% | (0.3 to 2.5) | 11 | 6.8% | (3.5 to 11.9) | 9 | 10.3% | (4.8 to 18.7) |
CVD | 0 | 0% | (0 to 0.9) | 2 | 1.2% | (0.2 to 4.4) | 9 | 10.3% | (4.8 to 8.7) |
CHD | 0 | 0% | (0 to 0.9) | 2 | 1.2% | (0.2 to 4.4) | 7 | 8.0% | (3.3 to 15.9) |