Table 1. Description of baseline characteristics.
| Participants | Missing* | |
| (n = 790)* | % | |
| Age, y, median (IQR) | 75 (72–80) | 0.0 |
| Female | 56.7 | 0.0 |
| Born in the Netherlands | 85.4 | 0.1 |
| Level of education | 1.0 | |
| Primary school or less | 22.4 | |
| Secondary education or vocational school | 61.9 | |
| College or university | 14.8 | |
| Socioeconomic Status | 0.0 | |
| Low (≤1SD) | 32.7 | |
| Intermediate | 42.8 | |
| High (≥1SD) | 24.4 | |
| Marital status | 0.4 | |
| Married/Living together consistently or with child | 51.8 | |
| Divorced/Widow/Not married | 48.2 | |
| Living situation | 1.6 | |
| Independent | 92.7 | |
| Home for elderly | 6.1 | |
| Living with friend or family | 1.2 | |
| Modified Katz ADL (15 items) | 2.9 | |
| 0 | 55.8 | |
| 1–2 | 20.6 | |
| ≥3 | 23.6 | |
| Depressive symptoms (GDS-2) | 15.6 | 5.7 |
| Comorbidities: | 0.0 | |
| 0 | 14.3 | |
| 1 | 22.2 | |
| ≥2 | 63.5 | |
| Self-reported memory problems | 16.2 | 2.3 |
| Polypharmacy (≥3) | 60.3 | 6.2 |
| Self-reported health status compared to 1 year ago | 1.5 | |
| Better/Same/Worse | 9.8/60.4/29.8 | |
| Limitations of social activities | 4.6 | |
| Constant/Sometimes/Never | 13.8/18.8/67.4 |
*Values are percentages unless otherwise noted.
IQR = interquartile range; SD = standard deviation; ADL = Activities of Daily Living; GDS = Geriatric Depression Scale (GDS-2).