Table 1 Demographic data (n = 489).
Characteristics | n | % |
|---|---|---|
Sex | ||
Male | 213 | 43.56 |
Female | 276 | 56.44 |
Age (years) | ||
7–9 | 267 | 54.60 |
10–12 | 222 | 45.40 |
Grade | ||
1–3 | 246 | 50.31 |
4–6 | 243 | 49.69 |
Underlying disease | ||
No | 434 | 88.75 |
Yes | 55 | 11.25 |
Exercise | ||
No | 169 | 34.56 |
Yes | 320 | 65.44 |
Hobby | ||
No | 167 | 34.15 |
Yes | 322 | 65.85 |
Musculoskeletal discomfort | ||
Have | 326 | 66.67 |
Have not | 163 | 33.33 |
Duration of carry bag (min/day) | ||
< 10 | 48 | 9.82 |
10–20 | 317 | 64.83 |
21–30 | 85 | 17.38 |
> 30 | 39 | 7.97 |
Mean ± SD | 19.04 ± 12.05 | |
Perceive of heaviness | ||
Light | 1 | 0.21 |
Suited | 138 | 28.22 |
Heavy | 350 | 71.57 |
Keeping a book in school | ||
No | 402 | 82.21 |
Yes | 87 | 17.79 |
Assistance with parent baggage | ||
No | 204 | 41.72 |
≤ 10 | 45 | 9.20 |
11–15 | 125 | 25.56 |
16–20 | 104 | 21.27 |
> 20 | 215 | 43.97 |
Mean ± SD | 17.46 ± 6.02 | |
