Table 1 Sex- and school-type-based analysis of students’ self-rated physical health.

From: Relationship between self-rated health and depression risk among children in Japan

School

Ages

Sex

n

Mean SD

pa

Mean SD

One-way ANOVA

Significance

Elementary

Ages 7–12

Boys

830

3.96 ± 1.08

0.408

3.92 ± 1.06

<0.001

Elementary vs. Junior High <0.001

Elementary vs. Senior High <0.001

Junior High vs. Senior High <0.001

Girls

762

3.86 ± 1.04

3.62 ± 1.07

Junior High

Ages 13–15

Boys

958

3.68 ± 1.08

0.095

Girls

917

3.56 ± 1.06

Senior High

Ages 16–18

Boys

1036

3.38 ± 1.03

0.867

3.36 ± 0.97

Girls

1138

3.33 ± 0.92

Total

Ages 7–18

Boys

2824

3.66 ± 1.09

0.000

3.60 ± 1.06

  

Girls

2817

3.55 ± 1.02

  1. Tukey’s multiple comparisons.
  2. All data are presented as mean ± SD; one-way ANOVA with post hoc Tukey test was applied for significance testing.
  3. SD standard deviation.
  4. p-value is significant at <0.05.
  5. aDifferences between boys and girls were analysed using the t-test.