Skip to main content

Advertisement

Table 1 Pre- and post-intervention comparative results on WMSD-related knowledge

From: Assessing the effects of an educational program for the prevention of work-related musculoskeletal disorders among school teachers

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   
Wrong 261 74.57 172 52.44 90 28.21   
2. Can WMSDs be prevented or controlled? 25.2716 <0.0001
Correct 245 70.00 261 79.57 274 85.89   
Wrong 105 30.00 67 20.43 45 14.11   
3. Do you know about physiological bending of the spine? 97.7663 <0.0001
Yes 71 20.29 182 55.49 95 29.78   
No 279 79.71 146 44.51 224 70.22   
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   
No 277 79.14 221 67.38 214 67.08   
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   
No 233 66.57 156 47.56 165 51.72   
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   
No 187 53.43 88 26.83 139 43.57   
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   
Wrong 289 82.57 158 48.17 224 70.22   
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   
Wrong 209 59.71 164 50.00 171 53.61   
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   
Wrong 149 42.57 65 19.82 44 13.79   
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   
Wrong 132 37.71 33 10.06 10 3.13   
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   
Wrong 106 30.29 57 17.38 26 8.15