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Table 2 Risk factors, symptoms and sick leave at baseline and follow-up.

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

  Usual care Intervention
Risk factors Baseline 12-month Baseline 12-month
Information (range 0-1)
(% workers with a red score) 40 25 41 17
Work hours
(median; range 0-12) 4.0 (52.3%) 4.0 (51.3%) 4.0 (51.5%) 4.0 (50.8%)
(% workers with a red/amber score) 11/30 8/31 11/29 8/30
Work posture and movement
(median; range 0-11) 4.0 (62.5%) 3.0 4.0 (64.4%) 2.0
(% workers with a red/amber score) 13/40 9/26 11/41 5/28
Work tasks
(median; range 0-5) 1.0 (53.3%) 1.0 (58.2%) 1.0 (53.8%) 1.0 (60.7%)
(% workers with a red/amber score) 15/31 11/30 14/32 12/27
Job decision latitude
(median; range 0-9) 0.0 (52.7%) 0.0 (56.8%) 0.0 (55.1%) 0.0 (57.9%)
(% workers with a red/amber score) 2/15 2/13 3/11 3/10
Work relation with management and colleagues (median: range 0-7) 1.0 (65.5%) 0.0 (62.2%) 1.0 (59.0%) 0.0 (60.9%)
(% workers with a red/amber score) 7/17 9/15 8/18 13/15
Work pace and load
(median; range 0-8) 4.0 3.0 (52.4%) 3.0 3.0 (54.3%)
(% workers with a red/amber score) 37/26 34/28 34/31 34/28
Recovery time
(median; range 0-6) 1.0 (74.3%) 0.0 1.0 (75.0%) 1.0
(% workers with a red/amber score) 6/19 6/18 6/19 7/18
Work environmental factors
(median; range 0-4) 1.0 (76.4%) 1.0 (77.8%) 1.0 (76.4%) 1.0 (81.2%)
(% workers with a red/amber score) 7/17 7/15 5/19 4/14
Furniture
(median; range 0-10) 2.0 (63.1%) 1.0 2.0 (66.4%) 2.0
(% workers with a red/amber score) 5/32 1/25 4/30 3/28
Computer workstation physical attributes (median; range 0-7) 1.0 (49.3%) 1.0 (63.5%) 1.0 (51.3%) 1.0 (66.9%)
(% workers with a red/amber score) 2/22 0/14 3/21 1/11
Eyesight (range 0-1)
(% workers with a red score) 34 29 37 29
Neck, shoulder and arm symptoms
Prevalence symptoms (%) 56 47 51 42
Prevalence proximal symptoms (%) 46 38 39 31
Prevalence distal symptoms (%) 28 24 31 24
Total symptom score
(median; range 0-44) 7.0 6.0 7.0 6.0
(% workers with a red/amber score) 12/24 9/19 9/21 4/20
Sick leave
Number of sick leave days (median) 1.0 (52.2%) 1.0 (51.7%) 0.0 (50.2%) 0.0 (50.9%)
   - % workers with 0 days sick leave 49 45 50 51
   - % workers with 1 - 7 days sick leave 27 31 30 29
   - % workers with 7 - 21 days sick leave 15 15 14 12
   - % workers with > 21 days sick leave 9 9 6 8
  1. Values indicate the mean except where otherwise indicated. Where applicable, scale extremes are given in the left-hand column. High scores reflect a high risk. (%) = cumulative percent at median value.