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Occup Environ Med 62:478-487 doi:10.1136/oem.2004.015792
  • Original article

A randomised controlled trial of postural interventions for prevention of musculoskeletal symptoms among computer users

Table 6

 Proportion of group B participants who met compliance criteria by visit

Compliance variable Number and percentage in compliance by visit
Intervention 1st recheck 2nd recheck
n (%) n (%) n (%)
Chair 125 (100.0) 118 (100.0) 118 (100.0)
Keyboard wrist rest 123 (98.4) 116 (98.3) 116 (98.3)
Eye level 104 (83.2) 102 (86.4) 110 (93.2)
Keyboard wrist ulnar deviation 125 (100.0) 116 (98.3) 116 (98.3)
Keyboard inner elbow angle 119 (95.2) 109 (92.4) 110 (93.2)
Keyboard wrist extension 98 (78.4) 97 (82.2) 96 (81.4)
Keyboard shoulder flexion 99 (79.2) 103 (87.3) 95 (80.5)
Keyboard shoulder abduction 118 (94.4) 108 (91.5) 110 (93.2)
Mouse wrist ulnar deviation 125 (100.0) 118 (100.0) 117 (99.2)
Mouse wrist extension 106 (84.8) 101 (85.6) 99 (83.9)
Monitor head rotation angle 122 (97.6) 116 (98.3) 116 (98.3)
Elbow difference 100 (80.0) 85 (72.0) 75 (63.6)
Overall compliance
    Totally compliant 47 (37.6) 50 (42.4) 50 (42.4)
    Not compliant in 1 category 41 (32.8) 29 (24.6) 31 (26.3)
    Not compliant in 2 categories 24 (19.2) 25 (21.2) 18 (15.3)
    Not compliant in 3 categories 7 (5.6) 8 (6.8) 10 (8.5)
    Not compliant in 4 categories 4 (3.2) 6 (5.1) 6 (5.1)
    Not compliant in ⩾5 categories 2 (1.6) 0 (0.0) 3 (2.5)

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