Table 3 Stratified analysis by the use of childcare facilities

Externalizing problem

Ref

1.86 (1.37–2.51)

1.84 (1.35–2.50)

2.25 (1.61–3.11)

2.31 (1.65–3.22)

3.57 (2.74–4.66)

3.47 (2.64–4.57)

Internalizing problem

Ref

2.16 (1.61–2.89)

2.03 (1.50–2.74)

2.1 (1.49–2.91)

2.08 (1.48–2.93)

3.47 (2.66–4.52)

3.31 (2.51–4.36)

Total problem

Ref

2.93 (1.82–4.67)

2.83 (1.76–4.55)

3.01 (1.77–5.01)

2.97 (1.76–5.00)

5.35 (3.57–8.09)

5.22 (3.43–7.95)

No use of childcare facilities (n = 3,335)

Externalizing problem

Ref

1.40 (1.04–1.87)

1.33 (0.99–1.79)

3.03 (2.26–4.03)

2.83 (2.11–3.80)

3.19 (2.74–4.66)

2.91 (2.64–4.57)

Internalizing problem

Ref

2.13 (1.64–2.75)

2.07 (1.59–2.70)

3.33 (2.51–4.38)

3.18 (2.39–4.22)

4.39 (3.46–5.58)

4.27 (3.34–5.46)

Total problem

Ref

2.30 (1.46–3.57)

2.04 (1.30–3.20)

4.39 (2.83–6.76)

3.91 (2.51–6.08)

6.38 (3.73–7.97)

5.45 (3.73–7.97)

P-value for interaction

Externalizing problem

Ref

0.200

0.280

0.634

Internalizing problem

Ref

0.976

0.064

0.210

Total problem

Ref

0.466

0.366

0.610