Table 2 Prevalence of musculoskeletal pain with respect to individual and work-related factors
Factors | Shoulder N (%) | Elbow N (%) | Wrist/hand N (%) | Upper back N (%) | Low back N (%) |
|---|---|---|---|---|---|
Individual | |||||
 Gender | |||||
  Men | 4 (14.8) | 2 (7.4) | 4 (14.8) | 9 (45.5) | 15 (55.6) |
  Women | 255 (52.5)* | 102 (21.0) | 131 (27.0) | 221 (33.3) | 273 (56.2) |
 Age | |||||
  23-29 years | 19 (34.5) | 5 (7.3) | 12 (21.8) | 19 (34.5) | 30 (54.5) |
  30-39 years | 42 (46.2)* | 10 (11.0) | 21 (23.1) | 38 (41.8) | 48 (52.7) |
  40-49 years | 75 (50.3)* | 36 (24.2)* | 46 (28.9) | 84 (56.4)* | 86 (57.7) |
  50-70 years | 123 (56.4)* | 54 (24.8)* | 59 (27.1) | 89 (40.8) | 124 (56.1) |
 Computer work experience | |||||
  1-5 years | 48 (41.7) | 14 (1.2) | 26 (22.6) | 40 (34.8) | 62 (53.9) |
  6-15 years | 152 (53.0) | 65 (22.6)* | 80 (27.9) | 144 (50.2)* | 165 (57.5) |
  16-36 years | 59 (53.2) | 25 (22.5)* | 29 (26.1) | 46 (41.4) | 61 (55.0) |
 BMI | |||||
   < 18.5 kg/m2 | 9 (47.4) | 0 (0) | 4 (21.1) | 6 (31.6) | 8 (42.1) |
  18.6-24.9 kg/m2 | 128 (50.2) | 50 (19.6) | 71 (27.8) | 122 (47.8) | 133 (51.0) |
   > 25 kg/m2 | 122 (51.0) | 54 (22.6) | 60 (25.1) | 102 (41.7) | 144 (60.3)* |
Work-related | |||||
 Duration of working with a computer | |||||
   < 4 h/day | 6 (30) | 6 (30.0) | 5 (25.0) | 8 (40) | 8 (40.0) |
  4-6 h/day | 47 (53.4)* | 14 (15.9) | 17 (19.3) | 36 (40.9) | 55 (62.5) |
   > 6 h/day | 206 (50.9)* | 84 (20.7) | 113 (27.9) | 186 (45.9) | 225 (55.6) |
 Taking a break every 2 h | |||||
  Yes | 30 (43.5) | 15 (21.7) | 13 (18.8) | 26 (37.7) | 31 (44.9) |
  No | 229 (51.6) | 89 (20.0) | 122 (27.5)* | 204 (45.9) | 257 (57.9)* |
 Quantitative demands | |||||
  Low | 84 (40.4) | 32 (15.4) | 42 (20.2) | 73 (35.1) | 112 (53.8) |
  Average | 80 (55.9)* | 30 (21.0) | 37 (25.9) | 69 (48.3)* | 79 (55.2) |
  High | 95 (58.6)* | 42 (25.9)* | 56 (34.6)* | 88 (54.3)* | 97 (59.9) |
 Cognitive demands | |||||
  Low | 59 (41.8) | 17 (12.1) | 31 (22.0) | 56 (39.7) | 74 (52.5) |
  Average | 96 (50.3) | 41 (21.5)* | 54 (28.3) | 78 (40.8) | 114 (59.7) |
  High | 104 (50.5)* | 46 (25.4)* | 50 (27.6) | 96 (53.0)* | 100 (55.2) |
 Responsibility demands | |||||
  Low | 63 (44.4) | 23 (16.2) | 35 (24.6) | 51 (35.9) | 80 (56.3) |
  Average | 79 (46.5) | 28 (16.5) | 45 (26.5) | 81 (47.6)* | 98 (57.6) |
  High | 117 (58.2)* | 53 (26.4)* | 55 (27.4) | 98 (48.8)* | 110 (54.7) |
 Degree of freedom at work | |||||
  Low | 135 (55.8)* | 52 (21.5) | 72 (29.8)* | 114 (47.1) | 138 (57.0) |
  Average | 73 (46.5) | 33 (21.0) | 40 (25.5) | 69 (43.9) | 87 (55.4) |
  High | 51 (44.7) | 19 (16.7) | 23 (20.2) | 47 (41.2) | 63 (55.3) |
 Social support | |||||
  Weak | 75 (54.3) | 31 (22.5) | 37 (26.8) | 73 (52.9)* | 89 (64.5)* |
  Average | 85 (46.4) | 34 (18.6) | 46 (25.1) | 77 (42.1) | 101 (55.2) |
  Strong | 99 (51.6) | 39 (20.3) | 52 (27.1) | 80 (41.7) | 98 (51.0) |