Table 3.
Intervention effects on physical exertion, pain-related work interference, number of pain regions, maximum pain intensity, and sickness absence due to musculoskeletal pain (MSP), self-efficacy, need for recovery and employee involvement. [SE=standard error; CI=confidence interval]
| Variable | Time | Intervention group | Control group | Mean treatment difference between group | ||||
|---|---|---|---|---|---|---|---|---|
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|
|
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| N | Estimate (SE) | N | Estimate (SE) | Estimate (SE) | 95% CI | P-value | ||
| Primary outcomes | ||||||||
| Physical exertion (0–10) | Baseline | 96 | 5.6 (1.8) | 94 | 6.2 (1.6) | |||
| Week 20 | 61 | 5.5 (2.0) | 61 | 6.1 (1.9) | -0.2 (0.3) | -0.8−0.4 | 0.45 | |
| Pain-related work interference (days 0–28) | Baseline | 95 | 2.3 (5.2) | 94 | 4.7 (7.70) | |||
| Week 20 | 61 | 3.7 (6.9) | 60 | 4.6 (7.55) | 0.2 (1.2) | -2.1−2.5 | 0.59 | |
| Number of pain regions (0–8) | Baseline | 95 | 2.2 (1.7) | 94 | 2.6 (1.83) | |||
| Week 20 | 61 | 2.2 (2.0) | 60 | 2.5 (2.09) | 0.1 (0.2) | -0.4−0.5 | 0.84 | |
| Maximum pain intensity (0–10) | Baseline | 95 | 5.4 (2.30) | 94 | 5.9 (2.8) | |||
| Week 20 | 61 | 5.2 (2.7) | 60 | 5.6 (3.2) | -0.1 (0.4) | -0.9−0.7 | 0.73 | |
| Secondary outcomes | ||||||||
| Sickness absence due to MSP (days 0–28) | Baseline | 94 | 0.4 (2.3) | 94 | 0.7 (3.2) | |||
| Week 20 | 61 | 0.1 (0.4) | 60 | 0.4 (1.1) | -0.4 (0.2) | -0.6− -0.1 | 0.01 | |
| Self-efficacy (0–4) | Baseline | 96 | 3.3 (0.5) | 94 | 3.4 (0.5) | |||
| Week 20 | 62 | 3.3 (0.6) | 67 | 3.4 (0.5) | -0.2 (0.1) | -0.3− -0.0 | 0.01 | |
| Need for recovery (0-100) | Baseline | 96 | 60.94 (29.20 | 94 | 63.12 (26.98) | |||
| Week 20 | 62 | 62.37 (31.21) | 67 | 64.43 (25.28) | 1.30 (2.41) | -3.45−6.04 | 0.59 | |
| Employee involvement (0–100) | Baseline | 96 | 73.09 (17.33) | 94 | 66.49 (16.35) | |||
| Week 20 | 62 | 74.29 (15.02) | 67 | 70.06 (14.66) | 1.94 (1.91) | -1.81−5.69 | 0.31 | |