Table 3. Demographic description of studied population (% or mean±SD).

Variable		Intervention (n = 210)	Control (n = 49)	P
Age (years)		0.86±13.52	1.16±13.86	NS
Number of siblings		1.03±2.08	0.92±1.93	NS
Gender	Boys	45%	33%	P = 0.02
	Girls	55%	67%
Country of birth	Israel	92.8%	91.8%	NS
	Other	7.2%	8.2%
Family marital status	Parents married	87%	81%	NS
Father education	Academic degree	35.5%	38.5%	NS
	Vocational	25.5%		25.0%
	High school	39.0%	37.5%
Mother education	Academic degree	52.2%	43.8%	NS
	Vocational	20.8%	29.2%
	High school	25.0%	27.1%