Source of exposure | Subjects4-150 (n) | Ratio of reported to observed duration of exposure | |||
---|---|---|---|---|---|
Median | (Interquartile range) | ||||
Impact screwdriver | 7 | 4.0 | (3.7–17.5) | ||
Nut runner | 8 | 3.0 | (1.7–8.6) | ||
Nailing or stapling gun | 11 | 4.6 | (2.3–6.9) | ||
Hammer drill | 6 | 2.7 | (2.0–9.7) | ||
Hand held sander | 8 | 6.3 | (3.4–7.6) | ||
Impact wrench | 5 | 5.6 | (3.0–10.0) | ||
Jig saw | 8 | 3.5 | (1.8–8.2) | ||
Hand held portable grinder | 11 | 2.1 | (1.2–6.3) | ||
Hand guided mower | 10 | 1.2 | (0.8–2.0) | ||
Floor polisher | 13 | 1.6 | (1.4–1.9) | ||
Any source of hand transmitted vibration | 104 | 2.5 | (1.6–5.9) | ||
Van | 6 | 1.2 | (1.1–1.2) | ||
Bus or coach | 12 | 1.1 | (1.0–1.2) | ||
Tractor | 8 | 1.1 | (1.0–1.1) | ||
Fork lift truck | 24 | 1.0 | (0.9–1.2) | ||
Lorry | 7 | 1.2 | (1.0–1.5) | ||
Any source of whole body vibration | 62 | 1.1 | (1.0–1.2) |
↵4-150 Analysis was restricted to subjects whose report of exposure was confirmed by observation.