Baseline characteristics for presence and absence of new onset HADS depressive symptoms groups
| Variables | HADS <8 group (n=53 427) | HADS ≥8 group (n=11 231) | P value | Effect size |
| Mean±SD | Mean±SD | |||
| Age | 66.56±10.54 | 64.73±11.29 | <0.001 | 0.17 |
| Total comorbidities | 2.34±1.44 | 2.58±1.56 | <0.001 | 0.16 |
| Weight | 82.35±16.46 | 83.11±18.40 | <0.001 | 0.05 |
| HADS anxiety score | 4.38±3.31 | 9.56±4.03 | <0.001 | 1.50 |
| Gender female % | 24.1 | 29.3 | <0.001 | 0.05 |
| 150 min physical activity a week (yes) % | 46.2 | 28.5 | <0.001 | 0.14 |
| Smoking (yes) % | 4.7 | 8.3 | <0.001 | 0.06 |
| Single % | 20.1 | 24.8 | <0.001 | 0.04 |
| IMD (most deprived) % | 9.6 | 15.0 | <0.001 | 0.07 |
| Heart failure (yes) % | 6.4 | 10.1 | <0.001 | 0.06 |
| Comorbidity | ||||
| Angina % | 18.4 | 19.5 | 0.008 | 0.01 |
| Diabetes % | 19.1 | 24.6 | <0.001 | 0.05 |
| Stroke % | 4.2 | 5.9 | <0.001 | 0.03 |
| Emphysema % | 1.7 | 2.6 | <0.001 | 0.03 |
| Chronic back problems % | 11.5 | 14.3 | <0.001 | 0.03 |
| Cardiac treatment | ||||
| No treatment % | 8.5 | 11 | <0.001 | 0.05 |
| PCI % | 50.3 | 44.5 | ||
| CABG % | 16.6 | 16.2 | ||
| Other treatment % | 24.6 | 28.3 | ||
CABG, coronary artery bypass graft; HADS, Hospital Anxiety and Depression Scale; IMD, Index of Multiple Deprivation; PCI, percutaneous coronary intervention.