TABLE 3.

Mixed-effects linear model of LAZ from age 0 to 6 mo in African HIV-exposed uninfected children in the Kesho Bora RCT¹

Fixed effects	β02	P	β13	P
Age, mo	0.09 ± 0.03	0.003	—
Infant feeding		0.73		0.001
Never breastfeeding	−0.03 ± 0.11	0.79	0.073 ± 0.020	<0.001
EBF <3 mo	0.05 ± 0.09	0.61	0.012 ± 0.017	0.45
EBF ≥3 mo	0		0
RCT arm		0.015		0.008
Triple antiretroviral	−0.18 ± 0.08	0.015	0.037 ± 0.014	0.008
Short course	0		0
Child sex		0.60		0.047
Male	−0.04 ± 0.08	0.60	−0.028 ± 0.014	0.047
Female	0		0
Study site		0.005		0.008
Bobo Dioulasso	0.30 ± 0.12	0.012	−0.028 ± 0.022	0.19
Mombasa	0.26 ± 0.11	0.018	−0.042 ± 0.020	0.041
Nairobi	−0.24 ± 0.20	0.22	−0.123 ± 0.035	<0.001
Somkhele	0.16 ± 0.14	0.26	−0.011 ± 0.024	0.66
Durban	0		0
Maternal BMI,4 kg/m2		<0.001		0.08
<20	−0.42 ± 0.15	0.005	0.029 ± 0.028	0.29
20–22.49	−0.47 ± 0.12	<0.001	0.030 ± 0.021	0.16
22.5–25	−0.06 ± 0.09	0.50	−0.017 ± 0.17	0.30
>25	0		0
Maternal height, cm		<0.001		0.30
<155	−0.45 ± 0.12	<0.001	−0.031 ± 0.022	0.16
155–159.9	−0.18 ± 0.11	0.11	−0.017 ± 0.021	0.40
160–164.9	−0.02 ± 0.11	0.88	0.002 ± 0.022	0.93
≥165	0		0
Maternal education		0.48		0.27
None	0.12 ± 0.14	0.38	−0.017 ± 0.026	0.51
Primary	0.10 ± 0.09	0.27	0.019 ± 0.017	0.27
Secondary	0		0
Maternal CD4+ cell count/mm3		0.77		0.09
200–349	−0.02 ± 0.08	0.77	−0.025 ± 0.014	0.09
350–500	0		0
Wealth tertile5		0.20		0.042
Lower	−0.16 ± 0.09	0.10	−0.009 ± 0.017	0.59
Middle	−0.13 ± 0.09	0.17	0.032 ± 0.017	0.06
Upper	0		0

¹Values are means ± SEs. n = 728. EBF, exclusive breastfeeding; LAZ, length-for-age z score; RCT, randomized controlled trial.

²The β₀ coefficient represents the estimated mean difference in LAZ at age 2 d.

³The β₁ coefficient represents the estimated mean change (slope) in LAZ/mo from age 2 d to 6 mo.

⁴Maternal BMI was measured during the first 2 mo postpartum.

⁵Wealth tertiles were site specific.