Preventive zinc supplementation for children, and the effect of additional iron: a systematic review and meta-analysis.

BMJ Open · 2014 · PMC4067863 · PMID 24948745

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nearly significantno p-value reported

Effects of zinc plus iron compared with zinc alone Effects on mortality were not significantly different between subgroups with and without iron (χ 2 =1.30, p=0.25); however, there was no mortality effect in groups receiving iron (RR 0.99 (0.86 to 1.15)) while the effect for groups that did not receive iron was nearly significant (RR 0.89 (0.79 to 1.00)).

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