From: Associations between various kinds of parental support and physical activity among children and adolescents in Shanghai, China: gender and age differences
Sample size
Age (years)
n
%
Mean
SD
Boys
31,143
50.7
11.78
3.39
Girls
30,286
49.3
11.76
3.22
Total
61,429
100.0
11.77
3.31