Sum of forces to the lumbar spine through lifting, carrying, or extreme forward bending, calculated on the basis of the means of the individual workload assessments performed by the referents within a given occupational group (Nh): |
<3.0×106
| 46 | 23.4 | | 21 | 9.2 | 1.0 | — | | 9 | 9.6 | 1.0 | — |
3.0–<6.0×106
| 53 | 26.9 | | 38 | 16.6 | 1.6 | 0.7 to 3.5 | | 11 | 11.7 | 0.7 | 0.2 to 2.5 |
6.0–<10.5×106
| 50 | 25.4 | | 55 | 24.0 | 2.6 | 1.2 to 5.7 | | 25 | 26.6 | 2.2 | 0.8 to 6.4 |
⩾10.0×106
| 47 | 23.9 | | 115 | 50.2 | 6.0 | 2.7 to 13.4 | | 49 | 52.1 | 2.8 | 0.9 to 8.5 |
Unknown | 1 | 0.5 | | | | | | | | | | |
p Value for trend4-151
| | | | | | p<0.00005 | | | | p=0.01 |
Sum of forces to the lumbar spine through lifting, carrying, or extreme forward bending, calculated on the basis of the medians of the individual workload assessments performed by the referents within a given occupational group (Nh): |
0 | 64 | 32.5 | | 42 | 18.3 | 1.0 | — | | 17 | 18.1 | 1.0 | — |
>0–<0.8×106
| 42 | 21.3 | | 42 | 18.3 | 1.7 | 0.9 to 3.4 | | 19 | 20.2 | 2.6 | 1.0 to 6.6 |
0.8–<4.0×106
| 46 | 23.4 | | 46 | 20.1 | 1.8 | 0.9 to 3.4 | | 19 | 20.2 | 1.9 | 0.8 to 4.8 |
⩾4.0×106
| 44 | 22.3 | | 99 | 43.2 | 3.7 | 2.0 to 6.8 | | 39 | 41.5 | 2.9 | 1.2 to 6.9 |
Unknown | 1 | 0.5 | | | | | | | | | | |
p Value for trend4-151
| | | | | | p=0.0001 | | | | p=0.04 |