Table 1.
Descriptive statistics of the population
| |
Total |
Boys |
Girls |
|||
|---|---|---|---|---|---|---|
| n | Mean ± SD | n | Mean ± SD | n | Mean ± SD | |
|
Age (years) |
79 |
8.6 ± 1.4 |
37 |
8.6 ± 1.3 |
42 |
8.5 ± 1.4 |
|
Body height (cm) |
78 |
137.5 ± 9.6 |
36 |
138.0 ± 9.3 |
42 |
137.0 ± 10.0 |
|
Body weight (kg) |
78 |
34.8 ± 10.3 |
36 |
34.8 ± 9.5 |
42 |
34.9 ± 10.9 |
| |
n
|
%
|
n
|
%
|
n
|
%
|
| BMI category |
|
|
|
|
|
|
| Normal |
53 |
67.9 |
26 |
72.2 |
27 |
64.3 |
| Overweight |
25 |
32.1 |
10 |
17.8 |
15 |
35.7 |
| City |
|
|
|
|
|
|
| Haarlem |
8 |
10.1 |
2 |
5.4 |
6 |
14.3 |
| Amersfoort |
30 |
38.0 |
16 |
43.2 |
14 |
33.3 |
| Hengelo |
24 |
30.4 |
12 |
32.4 |
12 |
28.6 |
| Vlaardingen |
8 |
10.1 |
4 |
10.8 |
4 |
9.5 |
| Rotterdam | 9 | 11.4 | 3 | 8.1 | 6 | 14.3 |