From: Prevalence and association between obesity and metabolic syndrome among Chinese elementary school children: a school-based survey
Age group(years)
Boy
Girl
Total
N
%
7~
5
2.8
8
3.8
13
3.3
8~
5.6
21
11.2
34
8.1
9~
6.7
17
9.5
30
8.0
10~
22
6.6
44
53
5.7
68
7.5
121