TABLE 2.

Underweight, stunting, and low BMIZ in BAN Study infants compared with Malawi DHS (35)¹

	BAN		Malawi DHS 2004
	n/total	%	n/total	%
Underweight infants (WAZ < −2 SD)
24 wk	95/1592	6.0	10/187	16.4***
28 wk	113/1561	7.2	20/177	10.8
32 wk	119/1470	8.1	29/174	19.1***
36 wk	150/1437	10.4	29/156	20.9**
42 wk	159/1400	11.4	42/186	22.3***
48 wk	169/1379	12.3	28/162	17.5
Stunted infants (LAZ < −2 SD)
24 wk	250/1591	15.7	48/187	22.1*
28 wk	283/1561	18.1	55/177	34.6***
32 wk	307/1468	20.9	75/174	40.7***
36 wk	351/1437	24.4	58/156	35.0*
42 wk	442/1400	31.6	84/186	44.1**
48 wk	473/1379	34.3	88/162	46.2**
Infants with low BMIZ (< −2 SD)
24 wk	42/1591	2.6	28/187	15.4***
28 wk	43/1561	2.8	14/177	8.1***
32 wk	37/1468	2.5	20/174	12.1***
36 wk	43/1437	3.0	18/156	11.2***
42 wk	50/1400	3.6	19/186	11.5***
48 wk	33/1379	2.4	21/162	13.1***

¹Values are the number of underweight, stunted, or low BMI infants divided by the total sample and the proportion at each time point. Asterisks indicate the level of significance when proportions in BAN and DHS infants were compared: *P < 0.05, **P < 0.01, ***P < 0.001. BAN, Breastfeeding, Antiretrovirals, and Nutrition; BMIZ, BMI-for-age Z-score; DHS, Demographic and Health Survey; LAZ, length-for-age Z-score; WAZ, weight-for-age Z-score.