Constants for three level response: |
Intercept 1 | 0.02 | 0.01 to 0.03 |
Intercept 2 | 0.06 | 0.04 to 0.08 |
Time: |
1992 | 1.0 | |
1993 | 0.9 | 0.8 to 1.0 |
1994 | 1.1 | 1.0 to 1.2 |
1995 | 0.7 | 0.7 to 0.8 |
Sex: |
Male | 1.0 | |
Female | 1.4 | 1.0 to 1.8 |
Age (y): |
<35 | 1.0 | |
35–44 | 1.2 | 1.0 to 1.4 |
45–54 | 1.7 | 1.5 to 2.1 |
55–64 | 1.8 | 1.4 to 2.3 |
| |
Amount of twisting movements of the trunk during a work day: |
Not at all | 1.0 | |
Little | 1.8 | 1.0 to 3.3 |
Moderate | 2.9 | 1.6 to 5.2 |
Much | 3.5 | 1.9 to 6.7 |
Working with a hand above shoulder level (h/day): |
<0.5 | 1.0 | |
0.5–1 | 3.4 | 1.5 to 7.5 |
>1 | 2.2 | 0.7 to 6.4 |
Balance of work demands: |
Good | 1.0 | |
Moderate | 1.2 | 1.0 to 1.3 |
Poor | 1.2 | 1.0 to 1.3 |
Overload at work: |
Not at all | 1.0 | |
Little | 1.2 | 1.1 to 1.3 |
Definite | 1.3 | 1.1 to 1.5 |
Body mass index (kg/m2): |
<23.0 | 1.0 | |
23.0–25.9 | 1.1 | 1.0 to 1.3 |
26.0–28.9 | 1.4 | 1.2 to 1.7 |
⩾29.0 | 1.5 | 1.2 to 1.7 |
Smoking: |
Non-smoker | 1.0 | |
Ex-smoker | 1.1 | 1.0 to 1.2 |
Current smoker | 1.2 | 1.1 to 1.3 |
Mental stress: |
Not at all | 1.0 | |
Little | 1.5 | 0.8 to 3.0 |
To some extent | 2.2 | 1.2 to 4.3 |
Much | 6.4 | 3.1 to 13.0 |
Other musculoskeletal pains (sum score): |
Increment of one unit | 2.3 | 2.2 to 2.4 |
|
Interactions: |
Sex×age (y): |
Male×<35 | 1.0 | |
Female×35–44 | 1.6 | 1.2 to 2.3 |
Female×45–54 | 1.2 | 0.9 to 1.7 |
Female×55–64 | 1.0 | 0.6 to 1.7 |
Twisting of the trunk×stress: |
Not at all×not at all | 1.0 | |
Little×little | 1.0 | 0.5 to 2.0 |
Little×to some extent | 0.9 | 0.5 to 1.8 |
Little×much | 0.4 | 0.2 to 0.8 |
Moderate×little | 0.9 | 0.4 to 1.7 |
Moderate×to some extent | 0.8 | 0.4 to 1.5 |
Moderate×much | 0.4 | 0.2 to 0.8 |
Much×little | 1.0 | 0.5 to 2.0 |
Much×to some extent | 0.9 | 0.4 to 1.8 |
Much×much | 0.3 | 0.2 to 0.7 |
| |
Twisting of the trunk×working with a hand above shoulder level (h/day): |
Not at all×<0.5 | 1.0 | |
Little×0.5–1 | 0.4 | 0.2 to 0.9 |
Little×>1 | 0.8 | 0.3 to 2.5 |
Moderate×0.5–1 | 0.3 | 0.2 to 0.8 |
Moderate×>1 | 0.6 | 0.2 to 1.8 |
Much×0.5–1 | 0.3 | 0.1 to 0.6 |
Much×>1 | 0.6 | 0.2 to 1.7 |