Table 1. Socio-demographic characteristics of the study population.

Character	No.	%
Age (years)
< 6	354	37.2
> 6	598	62.8
Gender
Male	443	46.5
Female	509	53.5
Maternal education (Years)
< 12	538	56.5
> 12	414	43.5
Paternal education (Years)
< 12	509	53.5
> 12	443	46.5
Monthly income (Iraqi Dinar) *
< 500,000	379	39.8
500,000–1,000,000	347	36.5
> 1,000,000	226	23.7
Birth order
First	323	33.9
Second or after	629	66.1
Family size
< 5	516	54.2
> 5	436	45.8
Total	952	100

I US $= 1250 Iraqi Dinar