Table 1.

The physical characteristics and daily zinc intakes of the Giardia-free and Giardia-infected groups of schoolchildren at baseline.

Variables	Giardia-free	Giardia-infected	*p value
	(n = 65)	(n = 49)
Age (yr)‡	8.8 (0.9)	8.7 (1.1)	0.70
Weight (kg)†§	30.5 (1.2)	27.1 ± (0.9)	0.02
Height (cm)†	128.7 ± 6.9	125.5 ± 7.4	0.03
W/A (z-score)†	-0.2 ± 1.3	-0.4 ± 1.3	0.04
H/A (z-score)†	-0.70 ± 1.0	-1.2 ± 1.1	0.02
W/H (z-score)∞	1.2 ± 1.7 47	0.8 ± 1.5 38	0.30
Daily zinc intake (mg/day)‡	5.9 ± 1.9	8.3 ± 11.7	0.12

Mean ± SD; ‡ n = 114: † n = 94; ^∞ n = 85; § Geometric mean (Standard Error); * Independent t-test