Eating Behaviors and Overweight among Adolescents: A Population-Based Survey in Japan

Table 1

Characteristics of the nonoverweight and the overweight boys among study participants.

Variables	Nonoverweight; (𝑛=1355)	Overweight; (𝑛=231)	𝑃 value^a
Age (years)	12.0 (12.37)	12.0 (12.39)	0.594
Birthweight (g)
<2500	6.0	8.9	<0.001
2500–2999	29.1	23.0
3000–3499	45.7	38.1
3500–3999	17.4	24.8
4000+	1.8	5.3
Only child (%)	7.8	9.3	0.438
Parent's obesity (%)
None	69.5	41.2	<0.001
Father only	20.9	32.3
Mother only	5.6	16.2
Father and mother	4.1	10.4
Exercise (%)
None	9.5	16.1	0.005
Sometimes	8.4	10.3
Daily	82.1	73.5
Sleeping hours (%)
9.0+	24.4	21.1	0.785
8.0–8.9	53.5	55.4
7.0–7.9	19.8	21.1
<7.0	2.3	2.5
Skipping breakfast (%)	5.2	4.4	0.624
Snack after dinner (%)
Seldom or none	39.9	42.6	0.441
Always or often	60.1	57.4
Eating speed (%)
Fast	21.8	47.2	<0.001
Medium	59.6	46.3
Slow	18.6	6.5
Eating until full (%)	54.7	58.9	0.237

Except where indicated percentage (%), values are median (mean).
aChi-square test or Wilcoxon rank-sum test.