Wave 6 participant characteristics and associated depressive symptoms at Wave 7 (n=6804)
| Participant characteristics | Depressive symptoms (Wave 7) (Center for Epidemiologic Studies Depression Scale 4+) | |
| No (0–3) (n=5953) (%) | Yes (≥4) (n=851) (%) | |
| All participants (n=6804) | 87.5 | 12.5 |
| Gender | ||
| Male (n=3030) | 90.8 | 9.2 |
| Female (n=3774) | 84.9 | 15.1 |
| Age | ||
| 50–59 years (n=1492) | 85.4 | 14.6 |
| 60–69 years (n=2720) | 90.0 | 10.0 |
| 70–84 years (n=2313) | 86.6 | 13.4 |
| 85+ years (n=279) | 81.7 | 18.3 |
| Metabolic Health | ||
| Good metabolic health (n=3123) | 88.8 | 11.2 |
| Poor metabolic health (n=3681) | 86.4 | 13.6 |
| Body Mass Index (BMI) | ||
| Non-obese (BMI<30 kg/m2) (n=4737) | 89.0 | 11.0 |
| Obese (BMI≥30 kg/m2) (n=2058) | 84.0 | 16.0 |
| Missing BMI data (n=9) | ||
| Baseline Depression (Wave 6) | ||
| Baseline depression (n=872) | 50.8 | 49.2 |
| No baseline depression (n=5932) | 92.9 | 7.1 |
| Wealth | ||
| Wealth quintile 1 (poorest) (n=1005) | 76.4 | 23.6 |
| Wealth quintile 2 (n=1214) | 81.7 | 18.3 |
| Wealth quintile 3 (n=1372) | 88.6 | 11.4 |
| Wealth quintile 4 (n=1464) | 91.4 | 8.6 |
| Wealth quintile 5 (wealthiest) (n=1619) | 94.4 | 5.6 |
| Missing wealth data (n=130) | ||