Occupational groups and dementia (dementia of any type, Alzheimer’s dementia and vascular dementia)
| Referents | All cases with dementia (n = 195) | Cases with possible AD (n = 108) | Cases with possible VD (n = 59) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cases | Per 10 years | Cases | Per 10 years | Cases | Per 10 years | |||||||||||||||
| Never* | Ever | Never* | Ever | OR† | 95% CI | OR† | 95% CI | Never* | Ever | OR† | 95% CI | OR† | 95% CI | Never* | Ever | OR† | 95% CI | OR† | 95% CI | |
| AD, Alzheimer’s dementia; VD, vascular dementia. | ||||||||||||||||||||
| *“Never exposed”-category: having never worked in the mentioned occupational group and having held a white-collar job as the main occupation ( = reference category). | ||||||||||||||||||||
| †Adjusted for age, region, sex, dementia in parents and smoking (pack-years). | ||||||||||||||||||||
| ‡Unskilled workers who performed various—mostly short-term—jobs (eg, factory work, assembly-line work, home help). | ||||||||||||||||||||
| §Occupational groups with <5 probands were combined in the category “other blue-collar work”. | ||||||||||||||||||||
| –Less than five probands (OR are not reported). | ||||||||||||||||||||
| Agriculture and mining | ||||||||||||||||||||
| Agricultural, animal husbandry and forestry workers | 107 | 19 | 75 | 17 | 1.9 | 0.8 to 4.3 | 1.7 | 0.9 to 3.1 | 36 | 8 | 2.3 | 0.7 to 7.1 | 2.2 | 1.0 to 4.7 | 25 | 6 | 1.9 | 0.6 to 6.5 | 1.4 | 0.7 to 2.8 |
| Production | ||||||||||||||||||||
| Manufacturers of paper and paper products; printers | 113 | 5 | 77 | 6 | 2.9 | 0.7 to 11.6 | 1.4 | 0.7 to 2.6 | 36 | 4 | 4.4 | 0.8 to 24.1 | 1.2 | 0.4 to 3.1 | 27 | 2 | 1.7 | 0.2 to 12.3 | 1.2 | 0.5 to 2.9 |
| Metal processors, blacksmiths | 112 | 4 | 77 | 4 | 2.1 | 0.4 to 11.3 | 1.0 | 0.3 to 3.0 | 37 | 1 | 1.7 | 0.1 to 33.2 | 0.9 | 0.04 to 18.9 | 26 | 2 | 3.0 | 0.4 to 24.2 | 0.2 | 0.01 to 3.4 |
| Metal workers (machinery fitters, machine assemblers, mechanics, manufacturers of precision instruments, plumbers, welders, sheet metal and structural metal preparers and erectors) | 108 | 19 | 75 | 10 | 1.3 | 0.5 to 3.6 | 1.3 | 0.7 to 2.2 | 37 | 5 | 2.8 | 0.7 to 10.5 | 2.2 | 1.0 to 5.1 | 26 | 3 | 0.7 | 0.1 to 3.5 | 1.2 | 0.5 to 2.5 |
| Electrical and electronics workers | 112 | 7 | 77 | 4 | 2.2 | 0.5 to 9.4 | 2.0 | 1.0 to 4.2 | 37 | 1 | 1.0 | 0.1 to 11.1 | 2.7 | 0.9 to 8.1 | 26 | 3 | 3.9 | 0.7 to 22.6 | 3.0 | 1.2 to 7.6 |
| Spinners, weavers, knitters, dyers, tailors, dressmakers | 107 | 26 | 76 | 27 | 1.3 | 0.6 to 2.7 | 1.4 | 0.9 to 2.1 | 36 | 20 | 1.7 | 0.7 to 3.9 | 1.4 | 0.9 to 2.2 | 27 | 2 | 0.6 | 0.1 to 2.5 | 1.5 | 0.8 to 2.9 |
| Tanners, fellmongers, pelt dressers; shoemakers and leather goods makers | 113 | 5 | 78 | 5 | 0.9 | 0.2 to 4.1 | 0.8 | 0.4 to 1.6 | 37 | 2 | 0.4 | 0.1 to 3.6 | 0.9 | 0.5 to 2.0 | 27 | 2 | 2.1 | 0.3 to 16.2 | 0.7 | 0.2 to 2.7 |
| Food and beverage processors, tobacco product makers | 110 | 7 | 73 | 17 | 4.1 | 1.4 to 11.8 | 3.6 | 0.8 to 16.9 | 36 | 7 | 2.9 | 0.8 to 11.2 | 2.3 | 0.5 to 10.6 | 23 | 9 | 7.3 | 2.0 to 27.3 | 8.7 | 0.7 to 102 |
| Construction workers (structural engineers, civil engineers) | 113 | 3 | 77 | 5 | 4.6 | 0.7 to 30.8 | 6.8 | 1.2 to 39.3 | 37 | 2 | 2.4 | 0.2 to 25.6 | 12.9 | 0.9 to 186 | 26 | 2 | 3.2 | 0.2 to 46.1 | 10.1 | 0.5 to 199 |
| Plasterers, insulators, glaziers, terrazzo workers, construction carpenters, roofers, upholsterers | 113 | 3 | 78 | 4 | 2.4 | 0.4 to 13.8 | 1.1 | 0.6 to 2.1 | 37 | 1 | — | — | — | — | 27 | 1 | – | – | – | – |
| Woodworkers and plastic workers (carpenters, cabinet makers, wooden or plastic models makers, wood-frame construction) | 114 | 3 | 77 | 3 | 0.8 | 0.1 to 5.2 | 0.7 | 0.3 to 1.5 | 37 | 1 | — | — | — | — | 26 | 2 | 1.4 | 0.2 to 11.6 | 0.6 | 0.05 to 7.1 |
| Labourers‡ | 113 | 3 | 78 | 10 | 7.6 | 1.7 to 34.2 | 5.3 | 0.5 to 55.1 | 37 | 3 | 2.2 | 0.3 to 17.7 | 0.7 | 0.03 to 152 | 27 | 4 | 6.3 | 1.0 to 39.2 | 4.0 | 0.7 to 23.4 |
| Technology | ||||||||||||||||||||
| Technicians (engineers, architects, chemists, physicists, electrical engineering technicians) | 110 | 15 | 77 | 7 | 0.7 | 0.2 to 2.3 | 1.1 | 0.7 to 1.7 | 37 | 2 | 0.5 | 0.1 to 3.3 | 1.4 | 0.6 to 3.0 | 26 | 5 | 1.0 | 0.2 to 3.9 | 1.0 | 0.6 to 1.9 |
| Other blue-collar work§ | ||||||||||||||||||||
| Miners, quarrymen, woodworkers, fitters, painters, quality checkers, machinists | 109 | 11 | 78 | 7 | 1.2 | 0.4 to 4.2 | 1.3 | 0.6 to 2.6 | 37 | 5 | 2.3 | 0.5 to 10.4 | 1.5 | 0.6 to 3.6 | 27 | – | – | – | – | – |
| Total: Blue-collar work as the main occupation | 114 | 111 | 78 | 115 | 1.6 | 1.0 to 2.5 | 37 | 70 | 1.7 | 1.0 to 3.1 | 27 | 31 | 1.2 | 0.6 to 2.5 | ||||||