Table 3.
Incidence rate ratios for occupational disability as a result of back disorders, dividing incidence rates for the period 1999–2000 by those for 1980–1985; adj IRR = for age differences adjusted incidence rate ratio, 95%CI = 95% confidence interval
| Men | < 25 y | 25–34 y | 35–44 y | 44–55 y | >55 y | tot IRR | adj IRR | 95% CI |
| Categories of disorders | ||||||||
| M40–43 Deforming dorsopathies | ||||||||
| M40–43 Kyphosis and other dorsopathies | 0.44 | 0.88 | 1.22 | 1.18 | 1.59 | 1.10 | 1.05 | 0.98–1.11 |
| M45–49 Spondylopathies | ||||||||
| M45–46 Inflammatory dorsopathies | 0.48 | 0.59 | 0.47 | 0.59 | 0.71 | 0.62 | 0.56 | 0.50–0.62 |
| M47–49 Spondylosis and other spondylopathies | 0.61 | 0.59 | 0.51 | 0.35 | 0.42 | 0.45 | 0.41 | 0.40–0.43 |
| M50–54 Other dorsopathies | ||||||||
| M50–51 Disorders of the intervertebral disc | 0.31 | 0.61 | 0.60 | 0.49 | 0.53 | 0.62 | 0.55 | 0.53–0.56 |
| M53 Other dorsopathies | 6.97 | 7.78 | 3.55 | 1.97 | 3.30 | 3.37 | 2.96 | 2.71–3.23 |
| M54 Dorsalgia | 0.49 | 0.74 | 0.74 | 0.52 | 0.51 | 0.69 | 0.61 | 0.59–0.63 |
| M54.2 Cervicalgia | 2.46 | 1.81 | 1.28 | 0.44 | 0.29 | 0.67 | 0.60 | 0.55–0.66 |
| M 96.1 Postlaminectomy syndrome | 2.05 | 2.02 | 1.73 | 1.74 | 2.32 | 2.12 | 1.85 | 1.62–2.14 |
| All back disorders | 0.48 | 0.75 | 0.73 | 0.54 | 0.59 | 0.70 | 0.63 | 0.62–0.64 |
| All disorders (incl. non-back disorders) | 1.19 | 0.96 | 0.80 | 0.75 | 0.74 | 0.88 | 0.82 | 0.81–0.82 |
| Women | < 25 y | 25–34 y | 35–44 y | 44–55 y | >55 y | tot IRR | adj IRR | 95% CI |
| Categories of disorders | ||||||||
| M40–43 Deforming dorsopathies | ||||||||
| M40–43 Kyphosis and other deformities | 1.03 | 1.61 | 1.73 | 1.40 | 1.54 | 1.59 | 1.45 | 1.32–1.60 |
| M45–49 Spondylopathies | ||||||||
| M45–46 Inflammatory dorsopathies | 1.15 | 1.06 | 0.78 | 1.07 | 1.09 | 1.20 | 0.99 | 0.80–1.21 |
| M47–49 Spondylosis and other spondyopathies | 1.39 | 1.41 | 0.69 | 0.45 | 0.42 | 0.70 | 0.52 | 0.48–0.56 |
| M50–54 Other dorsopathies | ||||||||
| M50–51 Disorders of the intervertebral disc | 0.85 | 0.91 | 0.62 | 0.51 | 0.49 | 0.83 | 0.61 | 0.58–0.63 |
| M53 Other dorsopathies | 3.68 | 4.49 | 2.17 | 1.76 | 2.59 | 3.23 | 2.36 | 2.12–2.69 |
| M54 Dorsalgia | 1.30 | 1.47 | 0.88 | 0.44 | 0.63 | 1.02 | 0.79 | 0.76–0.82 |
| M54.2 Cervicalgia | 4.63 | 2.76 | 1.12 | 0.53 | 0.46 | 1.28 | 0.95 | 0.84–1.06 |
| M 96.1 Postlaminectomy syndrome | 1.82 | 2.52 | 1.89 | 2.39 | 1.82 | 2.81 | 2.13 | 1.64–2.77 |
| All back disorders | 1.25 | 1.42 | 0.85 | 0.56 | 0.63 | 1.05 | 0.79 | 0.78–0.81 |
| All disorders (incl. non-back disorders) | 1.70 | 1.96 | 1.45 | 1.04 | 0.83 | 1.63 | 1.34 | 1.33–1.35 |