Questions | Pre-intervention | Six months post-intervention | 12 months post-intervention | χ 2 | P | |||
---|---|---|---|---|---|---|---|---|
n | % | n | % | n | % | |||
1. What kind of disease is a WMSD? | 143.8128 | <0.0001 | ||||||
Correct | 89 | 25.43 | 156 | 47.56 | 229 | 71.79 | Â | Â |
Wrong | 261 | 74.57 | 172 | 52.44 | 90 | 28.21 | Â | Â |
2. Can WMSDs be prevented or controlled? | 25.2716 | <0.0001 | ||||||
Correct | 245 | 70.00 | 261 | 79.57 | 274 | 85.89 | Â | Â |
Wrong | 105 | 30.00 | 67 | 20.43 | 45 | 14.11 | Â | Â |
3. Do you know about physiological bending of the spine? | 97.7663 | <0.0001 | ||||||
Yes | 71 | 20.29 | 182 | 55.49 | 95 | 29.78 | Â | Â |
No | 279 | 79.71 | 146 | 44.51 | 224 | 70.22 | Â | Â |
4. Do you know how to adjust the height of the office chair to make yourself more comfortable? | 15.7876 | 0.0004 | ||||||
Yes | 73 | 20.86 | 107 | 32.62 | 105 | 32.92 | Â | Â |
No | 277 | 79.14 | 221 | 67.38 | 214 | 67.08 | Â | Â |
5. Do you know the correct posture to use at the computer? | 27.5894 | <0.0001 | ||||||
Yes | 117 | 33.43 | 172 | 52.44 | 154 | 48.28 | Â | Â |
No | 233 | 66.57 | 156 | 47.56 | 165 | 51.72 | Â | Â |
6. Do you know the correct posture for working at your desk? | 50.1483 | <0.0001 | ||||||
Yes | 163 | 46.57 | 240 | 73.17 | 180 | 56.43 | Â | Â |
No | 187 | 53.43 | 88 | 26.83 | 139 | 43.57 | Â | Â |
7. What is the optimal elbow angle for typing at a computer? | 92.8680 | <0.0001 | ||||||
Correct | 61 | 17.43 | 170 | 51.83 | 95 | 29.78 | Â | Â |
Wrong | 289 | 82.57 | 158 | 48.17 | 224 | 70.22 | Â | Â |
8. What is the optimal angle between monitor and your sight line when using a computer? | 24.9632 | <0.0001 | ||||||
Correct | 141 | 40.29 | 164 | 50.00 | 148 | 46.39 | Â | Â |
Wrong | 209 | 59.71 | 164 | 50.00 | 171 | 53.61 | Â | Â |
9. Should you not leave space, when working in a sitting position, between the seat front and back of your legs? | 81.4197 | <0.0001 | ||||||
Correct | 201 | 57.43 | 263 | 80.18 | 275 | 86.21 | Â | Â |
Wrong | 149 | 42.57 | 65 | 19.82 | 44 | 13.79 | Â | Â |
10. If you have neck symptoms, should you raise the pillow to sleep? | 156.8531 | <0.0001 | ||||||
Correct | 218 | 62.29 | 295 | 89.94 | 309 | 96.87 | Â | Â |
Wrong | 132 | 37.71 | 33 | 10.06 | 10 | 3.13 | Â | Â |
11. Is the optimal chair height up to the position of knee? | 54.0184 | <0.0001 | ||||||
Correct | 244 | 69.71 | 271 | 82.62 | 293 | 91.85 | Â | Â |
Wrong | 106 | 30.29 | 57 | 17.38 | 26 | 8.15 | Â | Â |