Table 1. Demographic and clinical data of children in the intervention group, the waiting group and a reference language-normal group.

	Intervention group, n = 24(13 males/11 females)	Waiting group,n = 23(11 males/12 females)	Fisher’s exact test*	LN group,n = 36(20 males/16 females)
Birth order, %			0.22 NS
First born	20.8	43.5		41.7
Second born	62.5	39.1		50.0
Third or fourth born	16.7	17.4		8.3
Family history of SLD (1st degree), %	50.0	43.5	0.77 NS	2.8
Age of mothers at birth, mean (SD), years:months	32:1 (3:8)	33:7 (4:3)		31:7 (4:4)
Maternal school education (years in school), %			0.58 NS
No/low graduation (8–9)	12.5	8.7		11.1
Middle school graduation (10)	37.5	56.5		47.2
High school graduation (13)	50.0	34.8		41.7
Maternal work situation, %			0.57 NS
Full time employment	8	4		3
Part time employment	38	52		44
House wife	54	44		53

*Comparison of intervention and waiting group.

LN, language-normal; NS, not significant; SLD, speech and language disorder.