Effect of daily versus weekly home fortification with multiple micronutrient powder on haemoglobin concentration of young children in a rural area, Lao People's Democratic Republic: a randomised trial

Table 3 Change in anthropometric measurements in the three groups during the study period.

		Control	Twice-weekly	Daily	P^b
		(n = 110)	(n = 111)	(n = 110)
Weight for height Z score	Baseline	-0.48 ± 1.01^a	-0.63 ± 1.12	-0.53 ± 0.98	0.544
	Week 24	-1.09 ± 1.08	-0.97 ± 1.06	-1.15 ± 1.04	0.414
	Change	-0.61 ± 0.96 ^A	-0.33 ± 0.97 ^B	-0.62 ± 0.84 ^A	0.036
Height for age Z score	Baseline	-1.84 ± 1.62	-1.65 ± 1.70	-1.73 ± 1.53	0.677
	Week 24	-0.89 ± 1.56	-1.00 ± 1.49	-0.77 ± 1.41	0.532
	Change	0.95 ± 0.97 ^A	0.65 ± 0.93 ^B	0.95 ± 0.99 ^A	0.029
Weight for age Z score	Baseline	-1.38 ± 1.13	-1.38 ± 1.16	-1.36 ± 1.10	0.990
	Week 24	-1.27 ± 1.08	-1.24 ± 1.10	-1.23 ± 0.93	0.969
	Change	0.11 ± 0.50	0.14 ± 0.45	0.12 ± 0.48	0.901

ª Mean ± SD (all such value, except where indicated otherwise)
^b Analysis of variance;
^{A, B} Differences between groups are significant when letters are different (t test, P < 0.05).

ISSN: 1475-2891