| Diagnosis* | Only first 3 years of follow-up,no (%)† | After exclusion of first 3 years of follow-up,no (%)† | Entire follow-up;no left truncation,no (%)† |
| Total | 515 | 2549 | 3064 |
| Known cause of disability | 405 (100.0) | 2366 (100.0) | 2771 (100.0) |
| Musculoskeletal disorders | 160 (39.5) | 1119 (47.3) | 1279 (46.2) |
| Osteoarthritis | 52 (12.8) | 290 (12.3) | 342 (12.3) |
| Back problems | 83 (20.5) | 576 (24.3) | 659 (23.8) |
| Cardiovascular diseases | 76 (18.8) | 398 (16.8) | 474 (17.1) |
| Cancer | 35 (8.6) | 189 (8.0) | 224 (8.1) |
| Lung cancer | 6 (1.5) | 25 (1.1) | 31 (1.1) |
| Other cancer | 29 (7.2) | 164 (6.9) | 193 (7.0) |
| Mental disorders | 34 (8.4) | 213 (9.0) | 247 (8.9) |
| Other diagnoses | 100 (24.7) | 447 (18.9) | 547 (19.7) |
*Musculoskeletal disorders, ICD-9: 710–739; cardiovascular diseases, ICD-9: 390–459; cancer, ICD-9: 140–208; mental disorders, ICD-9: 290–319; †percentages among those with known cause of disability.