TABLE 4.

Unadjusted mean HAZ and BAZ at baseline and after 3 y in the intervention and control groups, and adjusted ANCOVA estimates for these indicators, in children aged 5–15 y at baseline living in poor households, and by subgroups aged 5–8 y and 9–15 y at baseline living in treatment and control communities in Ghana, HGSF study¹

		Control				School feeding
		Baseline		End line		Baseline		End line		ANCOVA
Poor2 households		Mean	n	Mean	n	Mean	n	Mean	n	Impact	SE	P
All	HAZ	−1.17	311	−1.22	231	−1.15	353	−1.10	271	0.11	0.08	0.210
	BAZ	−0.84	311	−0.96	225	−0.69	355	−0.84	264	0.06	0.09	0.518
5–8 y	HAZ	−1.03	189	−1.20	149	−0.88	182	−0.84	147	0.22	0.09	0.020
	BAZ	−0.78	190	−1.00	141	−0.50	182	−0.72	140	0.09	0.10	0.359
9–15 y	HAZ	−1.34	119	−1.25	81	−1.44	168	−1.40	123	−0.04	0.16	0.791
	BAZ	−0.94	117	−0.90	83	−0.89	170	−0.97	123	−0.04	0.14	0.789

¹All unadjusted baseline and end line values are means. BAZ, BMI-for-age z score; HAZ, height-for-age z score; HGSF, Home-Grown School Feeding.

²Poverty status was determined using household expenditures based on the national poverty line of 1314 Ghanaian cedis.