Table 1. - Socio-demographic characteristics of the family, maternal reproductive characteristics and biological characteristics of children before and after intervention. João Pessoa, PB, Brazil, 2009.

Variables	Intervention	p
	Before (n=225)		After (n=225)
	n	%		n	%
Monthly family income per capita (MW)*						0.39
	≤ 0.25	70	33.0		76	39.2
	0.26 to 0.50	86	40.6		68	35.1
	> 0.50	56	26.4		50	25.8
Maternal education (years)						0.45
	0 to 4	34	15.1		34	15.1
	5 to 8	77	34.2		65	28.9
	9 to 11	102	45.3		113	50.2
	12 to 15	12	5.3		13	5.8
Persons in the house						0.22
	2 to 3	70	31.1		59	26.2
	4 to 5	107	47.6		103	45.8
	6 to 12	48	21.3		63	28.0
Number of children						0.87
	1	111	49.3		106	47.1
	2	67	29.8		68	30.2
	3 to 6	47	20.9		51	22.7
Children aged <5 years in the house						0.83
	1	164	72.9		167	74.2
	2 to 4	61	27.1		58	25.8
Child age (months)						0.003
	1 to 6	111	49.3		89	39.6
	7 to 12	54	24.0		88	39.1
	13 to 24	60	26.7		48	21.3

MW - Minimum Wage (1MW = R$ 465.00)

* 13 records without information before and 31 after intervention.