Table 4 Psychophysical measures according to Punnett et al. [39]
From: Brachial plexopathy: a case–control study of the relation to physical exposures at work
Exposure | U | Controls | Cases | p | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
N | Median | N | Median | |||||||||
Right | Left | Right | Left | Right | Left | Right | Left | Right | Left | Right | Left | |
Work pace (a) | 2.925 | 65 | 6 | 80 | 8 | 0.0034 | ||||||
Back positions (b) | 4.319 | 65 | 3 | 80 | 5 | 0.0000 | ||||||
Neck positions (b) | 4.505 | 64 | 3 | 79 | 5 | 0.0000 | ||||||
Shoulder positions (b) | 5.235 | 4.958 | 65 | 65 | 3 | 2 | 80 | 80 | 6 | 5 | 0.0000 | 0.0000 |
Arm positions (b) | 4.651 | 5.304 | 65 | 65 | 3 | 2 | 80 | 80 | 6 | 5 | 0.0000 | 0.0000 |
Hand positions (b) | 3.625 | 4.211 | 65 | 65 | 4 | 2 | 80 | 80 | 5.5 | 5 | 0.0000 | 0.0003 |
Whole body vibration (c) | 1.093 | 64 | 0 | 80 | 0 | 0.2743 | ||||||
Local vibration (c) | 1.942 | 1.848 | 65 | 65 | 0 | 0 | 80 | 79 | 0 | 0 | 0.0521 | 0.0646 |
Applied hand force (d) | 4.746 | 4.993 | 65 | 65 | 2 | 2 | 80 | 80 | 6 | 5 | 0.0000 | 0.0000 |
Applied hand force in uncomfortable positions | 4,211 | 4.281 | 65 | 65 | 1 | 1 | 76 | 76 | 2 | 1 | 0.0000 | 0.0000 |
Pressure on hand or arm (d) | 3.976 | 65 | 0 | 78 | 0 | 0.0001 | ||||||
Usual weight with manual handling (e) | 2.094 | 33 | 4 | 63 | 5 | 0.0362 | ||||||
Heaviest weight with manual handling (e) | 1.228 | 32 | 6.5 | 62 | 7.5 | 0.2194 | ||||||
Weight of usual tool (e) | 1.503 | 24 | 2 | 36 | 3 | 0.1329 | ||||||
Balance of usual tool (f) | 1.824 | 24 | 1 | 36 | 2.5 | 0.0681 | ||||||
Force required for holding and using tool (g) | 2.901 | 24 | 1.5 | 35 | 5 | 0.0037 | ||||||