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- Title
A meta‐analysis: Does vitamin D play a promising role in sleep disorders?
- Authors
Yan, Shoumeng; Tian, Zhenwei; Zhao, Hantong; Wang, Changcong; Pan, Yingan; Yao, Nan; Guo, Yinpei; Wang, Han; Li, Bo; Cui, Weiwei
- Abstract
Background: Sleep disorders, one of the most common problems in the general population, have been related to a series of harmful health consequences. Vitamin D appears to be associated with sleep disorders. However, the difference in vitamin D levels between sleep disorder subjects and people without a sleep disorder is unclear. Simultaneously, the influence of vitamin D replenishment on sleep disorders remains controversial. Methods: PubMed, MEDLINE, Web of Science, and Cochrane Library were searched for literatures published until October 2019. Using a random effects model, a meta‐analysis was conducted to calculate the standard mean difference to evaluate the difference in vitamin D concentrations between sleep disorder subjects and normal people and the efficacy of vitamin D supplementation on sleep disorders. Results: Our study found that the serum vitamin D levels in the sleep disorder subjects were lower than that in the normal people (SMD = −0.75 ng/ml, 95% CI = −0.93, −0.57 ng/ml). Moreover, the Pittsburgh Sleep Quality Index (PSQI)in the subjects with vitamin D supplementation was lower than that in the controls (SMD = −0.45, 95% CI = −0.76, −0.13). Conclusions: Vitamin D could play a promising role in sleep disorders. More data are required to confirm the efficacy of vitamin D supplementation for improving sleep disorders.
- Subjects
VITAMIN D; SLEEP disorders; META-analysis; RANDOM effects model
- Publication
Food Science & Nutrition, 2020, Vol 8, Issue 10, p5696
- ISSN
2048-7177
- Publication type
Article
- DOI
10.1002/fsn3.1867