Comparison of baseline characteristics of patients with the composite end point and all others waiting out of hospital
| Composite end point6-150 (n = 142) | All others out of hospital (n = 559) | Confidence interval | p value | |
|---|---|---|---|---|
| Mean (SD) age (years) | 61.6 (10.0) | 61.6 (8.9) | 0.9 | |
| Male sex | 77% | 74% | −4.8 to 11.2 | 0.4 |
| Severity of disease | ||||
| Left main | 10% | 16% | −12.0 to 1.2 | 0.09 |
| 1 to 2 vessel disease excluding PLAD | 19% | 18% | −6.1 to 8.2 | 0.77 |
| 2 to 3 vessel disease including PLAD | 19% | 14% | −0.87 to 12.3 | 0.10 |
| 3 vessel disease excluding PLAD | 50% | 51% | −10.4 to 8.1 | 0.80 |
| Class III or IV angina | 78% | 63% | 7.1 to 24.7 | 0.0002 |
| Left ventricular ejection fraction | ||||
| > 50% | 81% | 86% | −12.9 to 1.15 | 0.11 |
| 35 to 50% | 15% | 10% | −0.84 to 11.5 | 0.10 |
| < 35% | 4% | 4% | −3.2 to 4.3 | 0.7 |
| Missing data | 15% | 11% | ||
| Smoking | ||||
| Never | 31% | 34% | −12.2 to 5.6 | 0.46 |
| Past | 52% | 55% | −12.2 to 6.5 | 0.55 |
| Current | 17% | 11% | 0.03 to 12.3 | 0.06 |
| Hypertension | 51% | 41% | 1.7 to 20.1 | 0.02 |
| Diabetes | 16% | 16% | −7.3 to 6.3 | 0.89 |
| Previous myocardial infarction | 45% | 45% | −9.3 to 9.2 | 0.98 |
| Previous CABG | 19% | 9% | −16.3 to −4.7 | 0.001 |
| Mean (SD) New Zealand score | 46.0 (11.8) | 45.0 (12.7) | 0.34 | |
| Mean (SD) Ontario score | 5.2 (0.69) | 5.2 (0.74) | 0.71 | |
| Median (IQR) waiting time | 88.5 (34 to 260) | 153 (44 to 441) | 0.0005 | |
↵6-150 Composite end point of death or non-fatal myocardial infarction or cardiac readmission. CABG, coronary artery bypass grafting; PLAD, proximal left anterior descending coronary artery; IQR, interquartile range.