From: Social and family factors as determinants of exercise habits in Japanese elementary school children: a cross-sectional study from the Super Shokuiku School Project
Grade
Yes
No
Total
(n)
(%)
Low (1st–2nd)
557
97.0
17
3.0
574
Middle (3rd–4th)
532
97.6
13
2.4
545
High (5th–6th)
584
18
602