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- W4200519069 abstract "Background There is conflicting evidence for vitamin D supplementation in childhood asthma. We aimed to systematically synthesise the evidence on the efficacy and safety of vitamin D supplementation in childhood asthma. Methods We searched electronic databases (Medline, Embase and Web of Science) and a register (CENTRAL) for randomised controlled trials (RCTs) published until 30 September 2021. RCTs enrolling asthmatic children (1–18 years old) and comparing vitamin D against placebo/routine care were included if they met at least one of the endpoints of interest (asthma attacks, emergency visits or hospitalisation). We used the Risk of Bias 2 tool for risk of bias assessment. Random-effects meta-analysis with RevMan 5.3 software was performed. The Grading of Recommendations Assessment, Development and Evaluation approach was used to assess the level of certainty of the evidence. Results 18 RCTs (1579 participants) were included. The pooled meta-analysis did not find a significant effect of vitamin D supplementation on asthma attacks requiring rescue systemic corticosteroids (six studies with 445 participants; risk ratio (RR) 1.13, 95% CI 0.86–1.48; I 2 =0%) (moderate-certainty evidence). In addition, there was no significant difference in the proportion of children with asthma attacks of any severity (11 trials with 1132 participants; RR 0.84, 95% CI 0.65–1.09; I 2 =58%) (very low-certainty evidence). Vitamin D does not reduce the need for emergency visits (three studies with 361 participants; RR 0.97, 95% CI 0.89–1.07; I 2 =0%) and hospitalisation (RR: 1.38, 95% CI 0.52–3.66; I 2 =0%) (low-certainty evidence). Conclusion Very low- to moderate-certainty evidence suggests that vitamin D supplementation might not have any protective effect in childhood asthma." @default.
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- W4200519069 date "2021-12-23" @default.
- W4200519069 modified "2023-10-16" @default.
- W4200519069 title "Vitamin D supplementation in childhood asthma: a systematic review and meta-analysis of randomised controlled trials" @default.
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- W4200519069 doi "https://doi.org/10.1183/23120541.00662-2021" @default.
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