Baseline patient characteristics for patients with high (deprivation categories 1–4) and low (deprivation categories 5–7) socioeconomic status
| High SES(n = 850) | Low SES(n = 441) | p Value* | |
|---|---|---|---|
| CABG, coronary artery bypass graft; CCS, Canadian Cardiac Society; LAD, left anterior descending; LVEF, left ventricular ejection fraction; MI, myocardial infarction; SES, socioeconomic status. | |||
| *χ2 test or Fisher’s exact test for comparison of percentages and Mann–Whitney U test for comparing continuous variables. | |||
| †Values are mean (SD). | |||
| Male (%) | 69 | 63 | 0.022 |
| Age (years)† | 61.8 (10.1) | 59.3 (10.0) | <0.001 |
| Previous MI (%) | 38 | 34 | 0.124 |
| Previous CABG (%) | 12 | 10 | 0.254 |
| LVEF (%)† | 52.1 (10.5) | 51.9 (12.2) | 0.913 |
| Hypertension (%) | 37 | 24 | <0.001 |
| Diabetes (%) | 10 | 13 | 0.180 |
| Chronic lung disease (%) | 0.6 | 2.5 | 0.024 |
| Non-smoker (%) | 59 | 66 | <0.001 |
| Current or ex-smoker (%) | 41 | 34 | |
| Coronary disease (%) | |||
| Left main stem | 2 | 2 | 0.999 |
| Proximal LAD | 38 | 35 | 0.234 |
| Multivessel disease | 30 | 25 | 0.051 |
| Procedure status (%) | 0.051 | ||
| Elective | 56 | 62 | |
| Urgent | 37 | 34 | |
| Emergency | 7 | 5 | |
| Angina score (%) | 0.004 | ||
| CCS I–II | 45 | 53 | |
| CCS III–IV | 55 | 47 | |