Table 1 Descriptive characteristics by gender, n [% (95% CI)], mean age 9.0 ± 1.8 years
Variables | Girls | Boys | ||||
|---|---|---|---|---|---|---|
|  | N = 270 | N = 287 | ||||
| Â | n | [% (95% CI)] | n | [% (95% CI)] | ||
Degree of urbanization | Â | Â | Â | Â | Â | Â |
   Rural | 83 | 30.7 | (25.5 - 36.5) | 90 | 31.4 | (26.2 - 36.9) |
   Urban | 187 | 69.3 | (61.3 - 76.7) | 197 | 68.6 | (63.0 - 73.8) |
Socioeconomic status | Â | Â | Â | Â | Â | Â |
   Low | 117 | 43.3 | (37.6 - 49.2) | 123 | 42.9 | (37.3 - 48.7) |
   Middle | 70 | 25.9 | (21.0 - 31.5) | 74 | 25.8 | (21.1 - 31.1) |
   High | 73 | 27.0 | (22.1 - 32.6) | 65 | 22.6 | (18.2 - 27.8) |
   Missing data | 10 | 3.7 | - | 25 | 8.7 | - |
Body mass indexa | Â | Â | Â | Â | Â | Â |
   Thinness | 5 | 1.9 | (0.7 - 4.4) | 1 | 0.3 | (0.0 - 1.9) |
   Normal | 219 | 81.1 | (75.6 - 85.0) | 235 | 81.9 | (77.0 - 85.9) |
   Overweight and obesity | 46 | 17.0 | (12.9 - 22.0) | 51 | 17.8 | (12.1 - 24.7) |
Waist circumferenceb | Â | Â | Â | Â | Â | Â |
   Small | 2 | 0.7 | (0.2 - 2.7) | 3 | 1.0 | (0.3 - 3.1) |
   Normal | 220 | 81.5 | (74.8 - 87.0) | 256 | 89.2 | (80.2 - 98.5) |
   Abdominal overweight and obesity | 48 | 17.8 | (11.8 - 25.1) | 28 | 9.8 | (7.1 - 14.0) |
Percentage body fatb | Â | Â | Â | Â | Â | Â |
   Low | 8 | 3.0 | (1.5 - 5.7) | 3 | 1.0 | (0.4 - 3.0) |
   Normal | 220 | 81.5 | (76.4 - 85.7) | 268 | 93.4 | (89.9 - 95.7) |
   High body fat and obesity | 42 | 15.5 | (11.7 - 20.4) | 16 | 5.6 | (3.5 - 8.9) |