Baseline mean values for all groups and linear mixed models for the effect of the interventions on biomechanical work factors at 6 and 12 months
| Baseline | 6 months | 12 months | ICC* | |||||||||
| Inspection | Guidance | Control | Inspection | Guidance | Inspection | Guidance | ||||||
| Mean (SD) | Mean (SD) | Mean (SD) | Coef. | 95% CI | Coef. | 95% CI | Coef. | 95% CI | Coef. | 95% CI | ||
| Time spent—squatting or kneeling† (1–6) | 2.67 (1.04) | 2.83 (1.06) | 2.85 (1.17) | 0.17 | 0.02 to 0.32 | 0.09 | −0.05 to 0.23 | −0.02 | −0.19 to 0.15 | 0.02 | −0.14 to 0.20 | 0.021 |
| Time spent—walking or in an upright position† (1–6) | 4.64 (1.23) | 4.59 (1.20) | 4.49 (1.35) | 0.06 | −0.12 to 0.25 | −0.16 | −0.35 to 0.02 | −0.01 | −0.24 to 0.21 | −0.15 | −0.38 to 0.07 | 0.010 |
| Time spent—leaning forward without support† (1–6) | 3.12 (1.23) | 3.08 (1.27) | 3.09 (1.32) | −0.01 | −0.18 to 0.17 | −0.07 | −0.25 to 0.10 | 0.01 | −0.21 to 0.22 | −0.01 | −0.23 to 0.19 | 0.009 |
| Lifting in an uncomfortable position† (1–5) | 2.06 (0.71) | 2.10 (0.72) | 2.03 (0.75) | 0.06 | −0.03 to 0.14 | 0.02 | −0.06 to 0.11 | 0.07 | −0.03 to 0.19 | 0.11 | −0.01 to 0.22 | 0.001 |
| Lifting more than 10 kg† (1–5) | 1.97 (0.76) | 2.02 (0.81) | 1.92 (0.77) | 0.04 | −0.06 to 0.15 | 0.01 | −0.10 to 0.11 | 0.03 | −0.10 to 0.16 | 0.13 | −0.01 to 0.27 | 0.001 |
| Manually moving patients/clients† (1–5) | 2.09 (0.75) | 2.04 (0.73) | 2.02 (0.74) | −0.01 | −0.10 to 0.09 | −0.09 | −0.19 to 0.01 | 0.01 | −0.10 to 0.14 | 0.03 | −0.09 to 0.16 | 0.003 |
| Lifting/supporting patients/clients† (1–5) | 2.15 (0.79) | 2.11 (0.73) | 2.08 (0.75) | 0.03 | −0.06 to 0.13 | 0.01 | −0.08 to 0.11 | 0.02 | −0.10 to 0.14 | −0.06 | −0.18 to 0.06 | 0.001 |
| Physical exertions without aids† (1–5) | 1.81 (0.69) | 1.78 (0.68) | 1.75 (0.67) | 0.03 | −0.08 to 0.14 | 0.04 | −0.06 to 0.15 | −0.01 | −0.14 to 0.11 | −0.03 | −0.16 to 0.09 | 0.051 |
| Physical exertions despite available aids† (1–5) | 1.55 (0.61) | 1.55 (0.61) | 1.55 (0.69) | 0.07 | −0.02 to 0.17 | 0.06 | −0.03 to 0.15 | 0.01 | −0.10 to 0.13 | 0.06 | −0.05 to 0.18 | 0.001 |
| Perceived physical intensity/demand at work† (0–10) | 3.71 (1.93) | 3.91 (2.15) | 3.86 (2.19) | 0.19 | −0.07 to 0.45 | −0.01 | −0.27 to 0.25 | 0.26 | −0.05 to 0.57 | 0.08 | −0.23 to 0.39 | 0.011 |
| Appropriate allocation of physically demanding work‡ (1–5) | 2.83 (1.09) | 2.81 (1.10) | 2.79 (1.08) | 0.01 | −0.18 to 0.20 | −0.03 | −0.23 to 0.15 | −0.07 | −0.31 to 0.15 | −0.07 | −0.31 to 0.16 | 0.026 |
*Intraclass correlation (ICC) for the municipal cluster.
†A lower score is considered advantageous.
‡A higher score is considered advantageous.