Table 1 Basic description of the subjects. Total number, age, exposure time, vibration characteristics, smoking habits, reported sick leave and number of painful regions for the subjects included in this study. Units in number of people if not stated.
Driver categories and referents | ||||
|---|---|---|---|---|
Personal factors | Forest machine | Snowmobile | Snowgroomer | Referents |
Total number | 15 | 15 | 15 | 15 |
Age (mean ± sd) | 51 ± 9 | 49 ± 8 | 42 ± 7 | 46 ± 8 |
aExposure time (mean ± sd) | 44 ± 26 | 4 ± 5 | 9 ± 4 | 0.7 ± 2 |
bMean vibration total value (ms-2) | 1.5 (y-axis dominant) | 1.7 (x-axis dominant) | 0.9 (z-axis dominant) | - |
Smoker: -currently | 2 | 1 | 0 | 4 |
-previously | 6 | 5 | 9 | 8 |
cReported sick leave | 5 | 6 | 5 | 3 |
dNumber of painful regions: | ||||
-none | 2 | 1 | 0 | 5 |
-one | 7 | 10 | 8 | 5 |
-two or more | 6 | 4 | 7 | 5 |