Table 1. Selected characteristics of 365 infants in Recife region.

Variables	Index length for age				Total
	< P10		≤ P10
	n	%	n	%	n	%
Per-capita family income
≤ 0.50 minimum wage	94	75.8	100	41.5	194	53.2
> 0.50 minimum wage	15	12.1	98	40.7	113	30.9
Unknown	15	12.1	43	17.8	58	15.9
Water supply
Inside the house	52	41.9	169	70.1	221	60.5
Outside the house	27	21.8	31	12.9	58	15.9
Others	45	36.3	41	17.0	86	23.6
Type of toilet
Flush toilet	36	29.0	162	67.2	198	54.2
Pit latrine	52	42.0	65	27.0	117	32.1
None	36	29.0	14	5.8	50	13.7
Presence of refrigerator at home	27	21.8	146	60.6	173	47.4
Presence of television at home	70	56.5	187	77.6	257	70.4
Number of persons in the household
2-4	34	27.4	100	41.5	134	36.7
5-7	57	46.0	104	43.2	161	44.1
≥ 8	33	26.6	37	15.3	70	19.2
Mother's schooling (years)
0 – 4	102	82.3	123	51.0	225	61.6
≥ 5	22	17.7	118	49.0	140	38.4
Mother's age (years)*
13 – 19	19	15.4	43	17.8	62	17.1
20 – 29	67	54.5	153	63.5	220	60.4
≥ 30	37	30.1	45	18.7	82	22.5
Birth weight**
1,500-2,499	16	15.1	9	4.0	25	7.5
2,500-2,999	25	23.6	45	19.8	70	21.0
3,000-3,499	36	34.0	102	44.9	138	41.5
≥ 3,500	29	27.3	71	31.3	100	30.0

P = percentile;

^* 1 case without information;

^** 32 cases without information.