Table 3 Point prevalence of language delay depending on individual, family and educational factors

Bivariate associations

Sex

Girls^Ref

9,112

17.4

-

9,606

15.7

-

9,433

15.3

-

Boys

10,187

24.4

1.53***(1.43–1.64)

10,310

22.4

1.54***(1.44–1.66)

10,265

22.0

1.56***(1.46–1.68)

Age

 < 6.0 years^Ref

12,224

21.5

-

12,316

19.7

-

11,098

20.1

-

 < 7.0 years

6,941

19.9

0.90** (0.84–0.97)

7,453

17.7

0.87***(0.81–0.95)

8,411

16.6

0.79***(0.73–0.85)

 > 7.0 years

134

52.2

3.98***(2.80–5.71)

147

51.7

4.36***(3.12–6.14)

189

40.7

2.72***(2.00–3.69)

Language

German^Ref

18,111

20.2

-

18,642

18.2

-

18,221

17.8

-

other (mb)

569

36.0

2.22***(1.86–2.66)

753

35.2

2.44***(2.09–2.86)

825

35.5

2.54***(2.19–2.95)

bilingual

619

34.9

2.11***(1.78–2.52)

521

31.9

2.10***(1.74–2.54)

652

25.5

1.57***(1.31–1.89)

SEP index

high^Ref

9,089

14.3

-

9,948

13.7

-

10,231

13.0

-

middle

8,558

24.2

1.91***(1.77–2.07)

8,416

21.4

1.71***(1.58–1.85)

8,019

21.7

1.84***(1.71–2.00)

low

1,652

42.4

4.41***(3.93–4.94)

1,552

42.5

4.66***(4.15–5.24)

1,448

43.4

5.12***(4.54–5.77)

Kindergarten

 < 4 yrs^Ref

-

-

3,989

26.8

-

1,817

27.5

-

 > 4 yrs

-

-

15,927

17.3

0.56***(0.52–0.61)

17,881

17.9

0.58***(0.52–0.64)

Multivariate logistic regression

language^{[other (mb)]}

-

1.80***(1.49–2.16)

-

1.83***(1.55–2.16)

-

1.97***(1.67–2.32)

SEP index^[middle]

-

1.97***(1.82–2.13)

-

1.73***(1.60–1.87)

-

1.89***(1.75–2.05)

SEP index^[low]

-

4.23***(3.76–4.76)

-

4.04***(3.58–4.55)

-

4.71***(4.16–5.33)

kindergarten^{[≥4 yrs]}

-

-

-

0.75***(0.68–0.81)

-

0.85**(0.75–0.96)

-

R2 Tjur

-

R2 Tjur

-

R2 Tjur

0.056

0.058

0.060