|  | % meeting guideline | OR | 95 % CI | |
---|---|---|---|---|---|
Gender | Boys | 59.0 | 2.07 | 1.45 | 2.96 |
 | Girls | 46.5 | 1.00 |  |  |
Grade level | Preschool | 72.4 | 6.66 | 4.01 | 11.06 |
 | Lower grades of elementary school | 86.4 | 17.11 | 8.80 | 33.27 |
 | Higher grades of elementary school | 75.0 | 7.49 | 4.71 | 11.92 |
 | Junior high school | 30.0 | 1.00 |  |  |