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<article xsi:noNamespaceSchemaLocation="http://jats.nlm.nih.gov/publishing/1.1/xsd/JATS-journalpublishing1-mathml3.xsd" dtd-version="1.1" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><front><journal-meta><journal-id journal-id-type="publisher-id">JCNR</journal-id><journal-title-group><journal-title>Journal of Clinical and Nursing Research</journal-title></journal-title-group><issn>2208-3685</issn><eissn>2208-3693</eissn><publisher><publisher-name>Bio-Byword Scientific Publishing Pty. Ltd.</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26689/jcnr.v7i1.4403</article-id><article-categories><subj-group subj-group-type="heading"><subject>Article</subject></subj-group></article-categories><title>A Meta-Analysis of the Effectiveness of Vitamin C in the Prevention and Treatment of Childhood Upper Respiratory Tract Infections</title><url>https://artdesignp.com/journal/JCNR/7/1/10.26689/jcnr.v7i1.4403</url><author>SaeedHaitham,EA AbdelrahimMohamed</author><pub-date pub-type="publication-year"><year>2023</year></pub-date><volume>7</volume><issue>1</issue><history><date date-type="pub"><published-time>2023-01-05</published-time></date></history><abstract>Background: The effectiveness of vitamin C in the prevention and treatment of pediatric upper respiratory tract infections was evaluated in a meta-analysis. Methods: A total 2,573 children with upper respiratory tract infections were included in the meta-analysis, 1,280 of whom received vitamin C and 1,293 who received control medication. The analysis of findings related to the studies included was done through random or fixed effects model to determine whether vitamin C supplementation could stop and control upper respiratory tract infections in children using mean difference (MD) with 95% confidence intervals (CIs). Results: On average, vitamin C-treated children had fewer upper respiratory tract infection bouts, their illness lasted shorter (MD -0.84; 95% CI -1.47 to -0.20, P = 0.009), and they were less contagious than the control. Conclusions: The number of episodes and illness duration of upper respiratory tract-infected pediatric subjects were considerably reduced in the intervention group (vitamin C) compared to the control. 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