Table 1.
Distribution of study population characteristics
| Parameter* | Risk category 1 (Reference) Employees in jobs with low MHO, < 10 points KIM-MHO |
Risk category 2 Employees in jobs with MHO, 10 – 24 points KIM-MHO |
Risk category 3 Employees in jobs with MHO, 25 – 49 points KIM-MHO |
Risk category 4 Employees in jobs with MHO, ≥ 50 points KIM-MHO |
All employees |
|---|---|---|---|---|---|
| Women | N = 306 | N = 75 | N = 59 | N = 73 | N = 513 |
| age [years] | 38.7 (10.1) | 37.7 (8.9) | 42.2 (9.1) | 44.8 (9.9) | 39.9 (10.0) |
| body height [cm] | 167.6 (6.3) | 169.2 (6.8) | 164.7 (6.0) | 164.7 (5.5) | 167.1 (6.4) |
| body mass index | 23.7 (3.6) | 23.9 (4.3) | 25.6 (4.7) | 26.2 (4.9) | 24.3 (4.2) |
| working hours per week [hours] | 38.7 (6.6) | 36.7 (5.6) | 34.9 (3.1) | 36.7 (3.1) | 37.7 (5.9) |
| Men | N = 498 | N = 173 | N = 23 | N = 239 | N = 933 |
| age [years] | 41.5 (9.0) | 38.5 (9.4) | 39.7 (11.2) | 36.6 (8.5) | 39.7 (9.2) |
| body height [cm] | 181.1 (6.8) | 181.0 (6.9) | 178.6 (6.3) | 178.4 (6.8) | 180.3 (6.9) |
| body mass index | 26.1 (3.2) | 26.2 (3.6) | 25.5 (2.9) | 26.8 (4.1) | 26.3 (3.6) |
| working hours per week [hours] | 43.3 (6.3) | 40.0 (5.2) | 38.5 (2.4) | 37.7 (2.3) | 41.1 (5.8) |
*Distribution of different study characteristics by exposure to manual handling operations (MHO) according to KIM-MHO risk categories. Mean and standard deviation