Objective variable	Alternatives
Pupils’ Sex	boy: 1, girl: 0
Body Mass Index
Guardian
Sex of the guardian who answered	male: 1, female: 0
Does your fourth-grade child have any older brothers and/or sisters?	no: 1, yes: 0
Do you eat breakfast?	yes: 1, no: 0
Do you think that children should eat a lot?	yes: 1, no: 0
Who chooses your child’s snacks?	child: 1, other: 0
What are you most concerned about snacks for your child?	quantity: 1, other: 0
Does your child eat any snacks before dinner on weekdays?	every day: 1, sometime: 2, seldom: 3, no: 4
Do you worry about your child skipping meals?	yes: 1, a sometimes: 2, seldom: 3, no: 4
Do you make sure that your child does not overeat heavily seasoned foods?	yes: 1, sometimes: 2, seldom: 3, no: 4
Do you make sure that your child does not drink too many juices?	yes: 1, sometimes: 2, seldom: 3, no: 4
Do you make sure that your child does not overeat snacks?	yes: 1, sometimes: 2, seldom: 3, no: 4
Do you make sure that your child eats plenty of vegetables?	no: 1, seldom: 2, sometimes: 3, yes: 4
Do you make sure that your child does not have any likes and dislikes?	no: 1, seldom: 2, sometimes: 3, yes: 4
Do you make sure that your child enjoys mealtimes?	no: 1, seldom: 2, sometimes: 3, yes: 4
Do you make sure that your child eats rice and accompanying dishes alternatively?	no: 1, seldom: 2, sometimes: 3, yes: 4
Do you read all the school lunch program notices handed out from school?	no: 1, seldom: 2, sometimes: 3, yes: 4
Do you think that schools should give guidance to children to exercise?	no: 1, seldom: 2, sometimes: 3, yes: 4
Do you think that children should be provided with an exercise-friendly environment?	yes: 1, sometimes: 2, seldom: 3, no: 4
Do you think that your child’s body weight matches his/her height?	yes: 1, sometimes: 2, seldom: 3, no: 4
Do you think that children should learn about lifestyle diseases in school?	no: 1, yes: 0
Do you discuss with your children health guidance issues learned in school?	no: 1, yes: 0
Have you had a health checkup in the last year?	no: 1, yes: 0
Do you know the results of your own blood tests?	no: 1, yes: 0
Child
How many hours do you sleep on school nights?	minutes