Table 5 Multiple linear regression using the broadband internalizing and externalizing scales as the outcomes for boys

Age group

0.003

12–13

Ref.

Ref.

14–15

-0.99

(-3.49–1.50)

1.51

(-1.29–4.32)

16–18

0.95

(-1.85–3.75)

2.96

(-0.33–6.24)

Performing any Sport

0.438

Yes

Ref.

Ref.

No

1.43

(-2.67–5.54)

-0.83

(-5.60–3.93)

Number of Siblings

0.600

0

Ref.

Ref.

1–3

− 0.26

(-7.10–6.56)

0.70

(-8.33–9.72)

4–5

4.00

(-4.72–12.72)

7.62

(-3.11–18.35)

≥ 6

-1.84

(-11.89–8.20)

-2.75

(-14.94–9.43)

Doing chores

0.780

Yes

0.26

(-2.44–2.96)

-1.90

(-5.05 -1.25)

No

Ref.

Ref.

Having an illness

0.081

Yes

Ref.

Ref.

No

-4.09

(-8.31–0.13)

-2.26

(-7.23–2.72)

Number of Close Friends

0.311

0

25.91

(11.17–40.66)

-20.78

(-37.67 - -3.88)

1–3

0.40

(-1.92–2.71)

-0.36

(-3.00–2.27)

≥ 4

Ref.

Ref.

Having school problems

0.015

Yes

3.64

(1.05–6.23)

3.58

(0.69–6.47)

No

Ref.

Ref.

Living with

0.794

Mother only

2.75

(-1.14–6.64)

-2.83

(-7.19–1.53)

Father only

0.10

(-4.53–4.33)

-1.83

(-6.99–3.32)

Both parents

Ref.

Ref.

Relationship with peers

(compared to peers)

0.672

Worse

7.08

(0.01–14.15)

7.35

(-1.83–16.53)

Likewise

Ref.

Ref.

Better

-1.89

(-4.15–0.36)

-0.72

(-3.27–1.83)

Relationship with siblings

(compared to peers)

0.024

Worse

-4.99

(-16.81–6.84)

-6.59

(-17.40–4.22)

Likewise

Ref.

Ref.

Better

-1.88

(-4.43–0.66)

-1.76

(-4.70–1.17)

Do not have siblings

-2.50

(-9.62–4.62)

-2.36

(-11.42–6.70)

Relationship with parents

(compared to peers)

0.050

Worse

-3.61

(-14.59–7.36)

3.99

(-7.21 -15.18)

Likewise

Ref.

Ref.

Better

-0.47

(-3.48–2.53)

-1.66

(-5.04–1.72)

Having at least one migrant parent

0.449

Yes

0.27

(-2.27–2.80)

4.61

(1.73–7.49)

No

Ref.

Ref.

Constant

15.63

(7.07–24.20)

13.15

(2.09–24.22)

0.020

Adj. R ²

0.3177

0.1195