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Table 3 Results of the longitudinal multilevel analyses.

From: Effectiveness of a questionnaire based intervention programme on the prevalence of arm, shoulder and neck symptoms, risk factors and sick leave in computer workers: A cluster randomised controlled trial in an occupational setting

  Intervention effect
β/Odds (95% C.I.)
Risk factors β Odds
Information (0/1) . 0.48 (0.28; 0.82)
Work hours (range 0-12) -0.08 (-0.33; 0.17) .
Work posture and movement (range 0-11) -0.35 (-0.68; -0.03) .
Work tasks (range 0-5) -0.04 (-0.24; 0.17) .
Job decision latitude (range 0-9) -0.10 (-0.35; 0.15) .
Work relation with management and colleagues (range 0-7) 0.02 (-0.34; 0.38) .
Work pace and load (range 0-8) -0.00 (-0.31; 0.30) .
Recovery time (range 0-6) 0.05 (-0.16; 0.25) .
Work environmental factors (range 0-4) -0.09 (-0.24; 0.07) .
Furniture (range 0-10) 0.24 (-0.12; 0.61) .
Computer workstation physical attributes (range 0-7) -0.09 (-0.29; 0.10) .
Eyesight (0/1) . 0.88 (0.62; 1.27)
Arm. shoulder and neck symptoms
Prevalence arm, shoulder and neck symptoms . 0.89 (0.61; 1.30)
Prevalence proximal symptoms . 0.78 (0.54; 1.12)
Prevalence distal symptoms . 0.90 (0.49; 1.67)
Total symptom score (range 0-44) -0.75 (-1.78; 0.29) .
Sick leave
Days of sick leave -0.27 (-2.85; 2.31) .
  1. β, regression coefficient; 95% C.I., 95% confidence interval.
  2. The results show the differences in changes in outcome variables regarding risk factors, the prevalence of arm, shoulder and neck symptoms and the amount of sick leave between the intervention group and the usual care group after 12 months of follow-up. The results were corrected for baseline. β represents the difference in score for the range indicated in the table.
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