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Table 4 Effects on mean concentration of hemoglobin (g/l) according to iron compound and time of evaluation

From: Effect of supplementation with ferrous sulfate or iron bis-glycinate chelate on ferritin concentration in Mexican schoolchildren: a randomized controlled trial

Supplement and time of evaluation

Change in mean Hb

95% CI

P value

Supplement

   

   Ferrous sulfate

Reference

  

   Bis-glycinate chelate

1.71

−0.20 – 3.63

0.080

Time of evaluation

   

   Baseline

Reference

  

   One week post-supplementation

−0.11

−1.36 – 1.13

0.859

   6 months after supplementation

−0.46

−2.08 – 1.16

0.578

  1. Mixed effects linear regression model with random intercept, adjusted by sex and age. Number of observations: 469, number of groups: 200, observations per group: 2.3 (1–3).
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Nutrition Journal

ISSN: 1475-2891

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