Table 1.
Characterization of the sample of adolescents attending municipal schools in the city of Rio Grande, RS, Brazil, 2014 (n = 619).
| Variable | N | % |
|---|---|---|
| Gender | ||
| Boys | 254 | 41.0 |
| Girls | 365 | 59.0 |
| Age | ||
| 10–11 years | 138 | 22.3 |
| 12–14 years | 380 | 61.4 |
| 15–17 years | 101 | 16.3 |
| Skin color | ||
| White | 414 | 66.9 |
| Black/brown | 205 | 33.1 |
| Body mass index/age | ||
| Normal | 392 | 63.3 |
| Overweight | 102 | 16.5 |
| Obese | 125 | 20.2 |
| Physical education at school | ||
| No | 45 | 7.3 |
| Yes | 574 | 92.7 |
| Physical activity in leisure time | ||
| Up to 300 min/week | 410 | 66.2 |
| More than 300 min/week | 209 | 33.8 |
| Backpack weight | ||
| ≤10% body weight | 507 | 82.4 |
| >10% body weight | 108 | 17.6 |
| Form of carrying backpack | ||
| Back | 598 | 96.6 |
| Arms/hands | 20 | 3.2 |