Table 5.

LAZ, WAZ, and WLZ at 6, 12, 18, and 24 months of age.^a

	Control	Intervention	Mean Difference	P - value
	Mean (95% CI)	Mean (95% CI)	(95% CI)
Length-for-age Z scoreb
6 months	-1.6 (-1.7 to -1.5)	-1.1 (-1.2 to -1.0)	0.4 (0.3 to 0.6)	<0.001
12 months	-2.1 (-2.2 to -1.9)	-1.7 (-1.8 to -1.6)	0.3 (0.1 to 0.5)	0.003
18 months	-2.4 (-2.6 to -2.3)	-2.1 (-2.2 to -1.9)	0.4 (0.2 to 0.6)	0.003
24 months	-2.4 (-2.6 to -2.2)	-2.0 (-2.2 to -1.9)	0.3 (0.1 to 0.6)	0.008
Weight-for-age Z scoreb
6 months	-2.0 (-2.1 to -2.0)	-1.6 (-1.8 to -1.5)	0.4 (0.2 to 0.6)	<0.001
12 months	-2.2 (-2.4 to -2.1)	-1.8 (-2.0 to -1.6)	0.4 (0.2 to 0.6)	0.001
18 months	-2.3 (-2.4 to -2.2)	-1.9 (-2.1 to -1.7)	0.4 (0.2 to 0.6)	0.003
24 months	-2.3 (-2.4 to -2.2)	-1.9 (-2.1 to -1.7)	0.3 (0.1 to 0.6)	0.011
Weight-for-length Z scoreb
6 months	-1.4 (-1.5 to -1.3)	-1.2 (-1.4 to -1.0)	0.2 (-0.0 to 0.4)	0.075
12 months	-1.6 (-1.7 to -1.6)	-1.3 (-1.5 to -1.1)	0.3 (0.1 to 0.5)	0.004
18 months	-1.6 (-1.6 to -1.5)	-1.3 (-1.5 to -1.1)	0.3 (0.1 to 0.5)	0.014
24 months	-1.4 (-1.5 to -1.4)	-1.2 (-1.4 to -1.0)	0.2 (0.0 to 0.5)	0.033

^aThe analysis is accounted for clustering using a linear regression model.

^bData present as percentage and 95% CIs.

Abbreviations: LAZ, length-for-age z score; WAZ, weight-for-age z score; WLZ, weight-for-length z score.