| Subjects | |
---|---|---|
 | Number | Percentage |
Age (yr) | Â | Â |
   < 18 | 23 | 11.1% |
   18-30 | 136 | 65.7% |
   > 30 | 48 | 23.2% |
Mean (SD) | 26,3 ± 9,1 yr | |
Education (yr) | Â | Â |
   ≤5 | 2 | 1.0% |
   8 | 49 | 23.7% |
   13 | 112 | 54.1% |
   > 13 | 44 | 21.3% |
Gender †|  |  |
Female | 80 | 38.6% |
Male | 127 | 61.4% |
Body mass index | Â | Â |
   < 25 kg/m2 | 149 | 71.9% |
   25 ≤ 30 kg/m2 | 51 | 24.6% |
   ≥ 30 kg/m2 | 7 | 3.5% |
Activity at work | Â | Â |
Heavy manual work | 54 | 26.1% |
Manual work | 56 | 27.1% |
Standing | 72 | 34.8% |
Sedentary | 25 | 12.1% |
Recreational activity | Â | Â |
Yes | 93 | 44.9% |
No | 114 | 55.1% |