Efficacy of prophylactic intermittent zinc supplementation for reducing acute respiratory infections and diarrhoea in infants: A randomized controlled trial.

While the estimated mean annual incidence of moderate to severe ARI cases was also lower in the zinc group compared to the control group, with a risk ratio of 0.35 (95%CI: -0.13 to 0.85), and RRR of 65% (95%CI: 15 to 113), this difference did not reach statistical significance ( P = 0.64).

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