| All workers N = 1,311 | Males N = 593 (45%) | Females N = 718 (55%) | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  | Univariate analysis1 | Multivariate analysis2 |  |  | Univariate analysis | Multivariate analysis3 |  |  | Univariate analysis | Multivariate analysis3 | ||||||
 | Exposed | Cases | PR | 95% CI | PR | 95% CI | Exposed | Cases | PR | 95% CI | PR | 95% CI | Exposed | Cases | PR | 95% CI | PR | 95% CI |
Changes in physical work factors | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â | Â |
Decreased daily computer use in general | 201 | 23 | 1.7 a | 1.10-2.65 | 1.8 | 1.15-2.76 | 94 | 9 | 1.8 a | 0.89-3.80 | Â | Â | 107 | 14 | 1.6 a | 0.93-2.85 | 1.7 | 0.99-3.00 |
Increased rests during computer use in general | 364 | 30 | 1.2 | 0.76-1.74 | Â | Â | 169 | 10 | 1.0 | 0.49-2.04 | Â | Â | 195 | 20 | 1.2 | 0.75-2.07 | Â | Â |
Decreased time with hands above shoulder level | 273 | 30 | 1.7 a | 1.13-2.55 | Â | Â | 129 | 12 | 1.9 a | 0.96-3.67 | Â | Â | 144 | 18 | 1.6 a | 0.95-2.67 | Â | Â |
Decreased time with flexed or extended neck | 309 | 26 | 1.2 | 0.76-1.80 | Â | Â | 142 | 9 | 1.1 | 0.53-2.29 | Â | Â | 167 | 17 | 1.2 | 0.72-2.07 | Â | Â |
Decreased time with flexed back | 293 | 25 | 1.2 | 0.78-1.86 | Â | Â | 140 | 10 | 1.3 | 0.64-2.63 | Â | Â | 153 | 15 | 1.2 | 0.66-2.00 | Â | Â |
Decreased lifting 5–10 kg | 270 | 21 | 1.0 | 0.66-1.67 |  |  | 120 | 9 | 1.4 a | 0.66-2.84 |  |  | 150 | 12 | 0.9 | 0.49-1.63 |  |  |
Decreased lifting 11–15 kg | 223 | 16 | 1.0 | 0.61-1.70 |  |  | 132 | 11 | 1.6 a | 0.80-3.18 |  |  | 91 | 5 | 0.6 | 0.24-1.44 |  |  |
Decreased lifting 16–25 kg | 166 | 13 | 1.1 | 0.64-1.94 |  |  | 95 | 9 | 1.8 | 0.88-3.75 |  |  | 71 | 4 | 0.6 | 0.23-1.65 |  |  |
Decreased lifting > 25 kg | 131 | 11 | 1.2 | 0.67-2.24 |  |  | 81 | 7 | 1.6 | 0.71-3.50 |  |  | 50 | 4 | 0.9 | 0.34-2.39 |  |  |
Decreased forceful grip | 267 | 23 | 1.2 | 0.78-1.91 | Â | Â | 131 | 8 | 1.0 | 0.49-2.25 | Â | Â | 136 | 15 | 1.3 | 0.77-2.32 | Â | Â |
Decreased use of vibrating tools | 46 | 3 | 1.0 | 0.31-3.00 | Â | Â | 31 | 2 | 1.1 | 0.28-4.37 | Â | Â | 15 | 1 | 0.8 | 0.11-5.09 | Â | Â |
Changes in psychosocial work factors | ||||||||||||||||||
Decreased job demands | 236 | 18 | 1.0 | 0.63-1.68 | Â | Â | 107 | 10 | 1.8 a | 0.90-3.67 | Â | Â | 129 | 8 | 0.7 | 0.32-1.36 | Â | Â |
Increased job control | 199 | 29 | 2.3 a | 1.56-3.52 | 1.8 | 1.18-2.83 | 90 | 11 | 2.6 a | 1.30-5.04 | 2.3 | 1.21-4.54 | 109 | 18 | 2.2 a | 1.35-3.71 | Â | Â |
Increased social support at work | 239 | 35 | 2.5 a | 1.68-3.63 | 2.0 | 1.34-3.05 | 103 | 10 | 1.9 a | 0.94-3.84 | Â | Â | 136 | 25 | 2.8 a | 1.76-4.50 | 2.4 | 1.43-3.95 |
Increased reward relative to effort | 326 | 39 | 2.0 a | 1.33-2.87 | Â | Â | 133 | 11 | 1.6 a | 0.80-3.15 | Â | Â | 193 | 28 | 2.2 a | 1.36-3.48 | 1.7 | 1.03-2.82 |
Decreased negative influence of job demands on private life | 349 | 41 | 2.0 a | 1.34-2.87 | 1.7 | 1.13-2.43 | 149 | 15 | 2.2 a | 1.18-4.25 | 2.1 | 1.10-3.87 | 200 | 26 | 1.8 a | 1.13-2.92 | Â | Â |
Decreased work outside the workplace | 209 | 14 | 0.9 | 0.51-1.52 | Â | Â | 95 | 4 | 0.7 | 0.24-1.87 | Â | Â | 114 | 10 | 1.0 | 0.52-1.91 | Â | Â |
Decreased overtime work(>12 h/day) | 264 | 20 | 1.0 | 0.64-1.64 |  |  | 123 | 10 | 1.5 | 0.76-3.10 |  |  | 141 | 10 | 0.8 | 0.40-1.48 |  |  |
Decreased reachable by mobile phone out of work time | 249 | 21 | 1.2 | 0.74-1.86 | Â | Â | 117 | 7 | 1.0 | 0.46-2.27 | Â | Â | 132 | 14 | 1.3 | 0.72-2.23 | Â | Â |
Decreased noise annoyance at the workplace | 329 | 25 | 1.0 | 0.66-1.58 | Â | Â | 147 | 8 | 0.9 | 0.42-1.94 | Â | Â | 182 | 17 | 1.1 | 0.64-1.85 | Â | Â |