Table 2.
Baseline Characteristics
| Depressed* | Non-Depressed | P Value | |
| Characteristics | (n = 494) | (n = 1447) | |
| Age, y -- % | 0.002 | ||
| 19–49 | 21 | 15 | |
| 50–64 | 39 | 34 | |
| 65–74 | 20 | 29 | |
| > 74 | 20 | 21 | |
| Male Sex -- % | 63 | 73 | <0.001 |
| Income, Canadian $ -- % | <0.001 | ||
| Low (<$30,000) | 33 | 24 | |
| Intermediate ($30,000 – $59,999) | 34 | 35 | |
| High (>$59,999) | 33 | 42 | |
| Coronary Risk Factors -- % | |||
| Diabetes | 29 | 22 | 0.001 |
| Hypercholesterolemia | 45 | 39 | 0.02 |
| Hypertension | 49 | 46 | 0.33 |
| Smoking | 43 | 39 | 0.08 |
| Non-cardiac comorbidities -- % | |||
| None | 6 | 9 | <0.001 |
| 1 | 16 | 23 | |
| 2 | 27 | 23 | |
| 3 or more | 51 | 46 | |
| Prognostic Indicators -- mean (SD) | |||
| GRACE 6-month prognostic index score⌷ | 11.6 (30.3) | 113.6 (28.5) | 0.22 |
| DASI Score§ | 11.2 (8.4) | 19.6 (11.8) | <0.001 |
| Processes of Care -- % | |||
| Percutaneous transluminal coronary angiography | 8 | 8 | 0.97 |
| Coronary angioplasty bypass grafting | 12 | 10 | 0.28 |
| ACE Inhibitor | 63 | 62 | 0.64 |
| Beta Blocker | 68 | 70 | 0.44 |
| Statin | 55 | 55 | 0.89 |
| Nitrate | 37 | 31 | 0.01 |
*The depression measure is a depression scale containing 9 items from the Brief Carroll Depression Scale (BCDS)(cut-off score of 5).
⌷Abbreviation: GRACE: Global Registry of Acute Coronary Events scale.
§Abbreviation: DASI: Duke Activity Status Index