Table 2 |
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|
Hand-arm vibration exposure in relation to prospective white fingers. |
||||
| Variable |
Event |
Censored |
Ratio |
95% Hazard Ratio Confidence Limits |
|
|
||||
| Non-exposed = 0–1600 h · m/s2 |
10 |
75 |
1 |
NA |
| Quartile 1 = 1601–3520 h · m/s2 |
3 |
22 |
1.02 |
0.28 – 3.71 |
| Quartile 2= 3521–7070 h · m/s2 |
5 |
20 |
1.77 |
0.61 – 5.19 |
| Quartile 3= 7071–18086 h · m/s2 |
4 |
21 |
1.37 |
0.43 – 4.382 |
| Quartile 4 = >18086 h · m/s2 |
6 |
19 |
2.15 |
0.78 – 5.91 |
|
Prospective dose-response analysis Cox regression Hand-arm vibration exposure dose was defined as the product of exposure hours and the hand-arm vibration exposure value, unit hours · m/s2 (h · m/s2). | ||||
Hagberg et al. Journal of Occupational Medicine and Toxicology 2008 3:13 doi:10.1186/1745-6673-3-13 |
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