PMID- 35844729 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220719 IS - 2296-2360 (Print) IS - 2296-2360 (Electronic) IS - 2296-2360 (Linking) VI - 10 DP - 2022 TI - The Effect of Vitamin D Supplementation in Children With Asthma: A Meta-Analysis. PG - 840617 LID - 10.3389/fped.2022.840617 [doi] LID - 840617 AB - BACKGROUND: An increasing number of studies have suggested that vitamin D can be used to treat childhood asthma, but its clinical effects are still unclear. We conducted this meta-analysis to examine the latest estimates of the effectiveness and safety of using vitamin D to treat childhood asthma. METHODS: The PubMed, The Cochrane Library, ScienceDirect, Embase, Scopus, Ovid MEDLINE, Web of Science, and Google Scholar databases were searched for randomized controlled trials (RCTs) describing vitamin D supplementation interventions for asthmatic children. Asthma exacerbation, vitamin D levels, the predicted percentage of forced expiratory volume in the first second (FEV1%) and adverse effects (AEs) were analyzed as the main outcome measures. RESULTS: After screening, eight RCTs with 738 children were included. Compared with placebos, vitamin D supplementation had a stronger effect on serum vitamin D levels [mean difference (MD) = 13.51 (4.24, 22.79), p = 0.004]. The pooled results indicated that no significant changes were found between the groups in asthma control, as measured by adopting the following indicators: asthma exacerbation [risk ratio (RR) = 0.92 (0.68, 1.25), p = 0.60]; Childhood Asthma Control Test (CACT) scores [MD = 0.15 (-0.43, 0.74), p = 0.61]; hospitalizations for asthma exacerbation [RR = 1.20 (0.48, 2.96), p = 0.70]; acute care visits [RR = 1.13 (0.77, 1.65), p = 0.63]; steroid use [RR = 1.03 (0.41, 2.57), p = 0.95]; and fractional exhaled nitric oxide (FeNO) [MD =-3.95 (-22.87, 14.97), p = 0.68]. However, vitamin D supplementation might reduce the FEV1% [MD = -4.77 (-9.35, -0.19), p = 0.04] and the percentage of predicted forced vital capacity (FVC%) [MD =-5.01 (-9.99, -0.02), p = 0.05] in patients. Subgroup analysis revealed no difference in AEs between the two groups. CONCLUSIONS: Vitamin D supplementation significantly increased patients' serum vitamin D levels, but it had no benefit for asthma control. However, vitamin D supplementation might reduce patients' lung function. It is essential to systemically search for more large-scale, rigorous, and well-designed RCTs to fully confirm these conclusions. SYSTEMATIC REVIEW REGISTRATION: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42021288838, PROSPERO CRD42021288838. CI - Copyright (c) 2022 Hao, Xu, Luo, Liu, Xie and Zhang. FAU - Hao, Meiqi AU - Hao M AD - Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China. AD - Jiangxi Medical College, Nanchang University, Nanchang, China. FAU - Xu, Ruoxin AU - Xu R AD - Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China. AD - Jiangxi Medical College, Nanchang University, Nanchang, China. FAU - Luo, Nachuan AU - Luo N AD - Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China. AD - Jiangxi Medical College, Nanchang University, Nanchang, China. FAU - Liu, Miaowen AU - Liu M AD - Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China. AD - Jiangxi Medical College, Nanchang University, Nanchang, China. FAU - Xie, Junping AU - Xie J AD - Department of Respiratory and Critical Care Medicine, The Second Affiliated Hospital of Nanchang University, Nanchang, China. FAU - Zhang, Wenxiong AU - Zhang W AD - Department of Thoracic Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China. LA - eng PT - Systematic Review DEP - 20220629 PL - Switzerland TA - Front Pediatr JT - Frontiers in pediatrics JID - 101615492 PMC - PMC9277022 OTO - NOTNLM OT - asthma OT - children OT - meta-analysis OT - systematic review OT - vitamin D COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2022/07/19 06:00 MHDA- 2022/07/19 06:01 PMCR- 2022/06/29 CRDT- 2022/07/18 03:40 PHST- 2021/12/21 00:00 [received] PHST- 2022/06/03 00:00 [accepted] PHST- 2022/07/18 03:40 [entrez] PHST- 2022/07/19 06:00 [pubmed] PHST- 2022/07/19 06:01 [medline] PHST- 2022/06/29 00:00 [pmc-release] AID - 10.3389/fped.2022.840617 [doi] PST - epublish SO - Front Pediatr. 2022 Jun 29;10:840617. doi: 10.3389/fped.2022.840617. eCollection 2022.