Rate ratios (95 % CIs) for cumulative exposure versus non-exposure to vibration (lifetime and follow up period)
| Test site | Hand side | Exposure period | Warmth | Cold | Neutral zone | Heat pain | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RR | 95% CI | RR | 95% CI | RR | 95% CI | RR | 95% CI | ||||||||||||
| Digit 2 | Right | Lifetime exposure | 1.30 | 0.57 to 2.94 | 1.09 | 0.47 to 2.73 | 0.86 | 0.42 to 1.76 | — | — | |||||||||
| Left | 1.66 | 0.75 to 3.65 | 1.41 | 0.53 to 3.74 | 2.48 | 0.89 to 6.94 | — | — | |||||||||||
| Right | 1987–92 exposure | 1.20 | 0.55 to 2.62 | 1.86 | 0.79 to 4.36 | 1.08 | 0.50 to 2.31 | — | — | ||||||||||
| Left | 2.24 | 0.79 to 4.36 | 1.86 | 0.79 to 4.36 | 3.55 | 1.69 to 7.49 | — | — | |||||||||||
| Thenar | Right | Lifetime exposure | 2.32 | 0.93 to 5.80 | 4.03 | 0.96 to 16.99 | 4.28 | 1.02 to 17.96 | 1.46 | 1.19 to 1.79 | |||||||||
| Left | 2.14 | 1.18 to 4.25 | 2.35 | 0.70 to 7.88 | 2.20 | 0.65 to 7.44 | 1.59 | 0.54 to 4.69 | |||||||||||
| Right | 1987–92 exposure | 1.65 | 0.83 to 3.29 | 3.20 | 1.34 to 7.65 | 2.84 | 1.22 to 6.59 | 2.41 | 1.06 to 5.52 | ||||||||||
| Left | 1.57 | 0.69 to 3.57 | 3.65 | 1.47 to 9.09 | 1.97 | 0.78 to 5.02 | 1.16 | 0.43 to 3.15 | |||||||||||