Baseline characteristics of the study population (N=667 002)
| n (%) | |
| Age | |
| 18–29 years | 123 381 (18.5) |
| 30–44 years | 215 807 (32.4) |
| 45–54 years | 166 467 (25.0) |
| 55–64 years | 161 347 (24.2) |
| Male | 328 696 (49.3) |
| Education | |
| Low | 287 746 (43.1) |
| Intermediate | 167 809 (25.2) |
| High | 71 737 (10.8) |
| Missing | 139 710 (20.9) |
| Living with a partner | |
| Yes | 279 953 (42.0) |
| No | 383 087 (57.4) |
| Missing | 3962 (0.6) |
| Having children | |
| Yes | 287 712 (43.1) |
| No | 375 328 (56.3) |
| Missing | 3962 (0.6) |
| Migration background | |
| Native Dutch | 403 011 (60.4) |
| Moroccan | 37 524 (5.6) |
| Turkish | 32 994 (4.9) |
| Surinamese and Antillean | 46 306 (6.9) |
| Other European | 29 643 (4.4) |
| Other non-European | 117 524 (17.6) |
| Chronic diseases | |
| Cardiovascular diseases | 87 351 (13.1) |
| Inflammatory conditions | 88 489 (13.3) |
| Diabetes | 34 288 (5.1) |
| Respiratory illness | 51 053 (7.7) |
| Common mental disorders | 89 038 (13.3) |
| Psychotic disorders | 40 863 (6.1) |
| Two or more chronic diseases | 169 464 (25.4) |
| Months employed 2009–baseline | |
| 0 months | 463 607 (69.5) |
| 1–12 months | 120 518 (18.1) |
| 13–21 months | 82 877 (12.4) |