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Table 3 Adjusted average scores for total SDQ, five SDQ subscores, SCL-10 score, and grade in boys and girls in different relative age groups within a school year

From: Is relatively young age within a school year a risk factor for mental health problems and poor school performance? A population-based cross-sectional study of adolescents in Oslo, Norway

 

Boys

Girls

 

Oldest

Middle

Youngest

p

Oldest

Middle

Youngest

p

Total SDQ score

9.01

8.90

9.31

0.07

10.61

10.56

10.37

0.35

SDQ Emotional

1.74

1.67

1.77

0.24

3.55

3.35

3.27

0.07

SDQ Hyperactivity

3.43

3.42

3.44

0.95

3.68

3.78

3.61

0.19

SDQ Conduct problems

2.34

2.24

2.32

0.39

1.91

2.01

1.97

0.46

SDQ Peer problems

1.52 *

1.56

1.74 *

<0.001

1.47

1.42

1.42

0.70

SDQ Pro social

6.96

6.81

6.92

0.41

7.90

7.95

7.84

0.46

SCL-10 score

0.64

0.62

0.62

0.62

0.94

0.94

0.89*

0.003

Average grade

3.90 *

3.87

3.82 *

0.009

4.14 *

4.06 *

4.03 *

<0.001

  1. Scores were adjusted for ethnicity, gender, parental education, and social support from family, class, teachers, and friends. * indicates the groups that differed significantly from each other by Tukey's post hoc test (p = 0.05).
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BMC Public Health

ISSN: 1471-2458

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