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Table 1 The physical characteristics and daily zinc intakes of the Giardia-free and Giardia-infected groups of schoolchildren at baseline.

From: Could giardiasis be a risk factor for low zinc status in schoolchildren from northwestern Mexico? A cross-sectional study with longitudinal follow-up

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