Meta-analysis2019Open access

Acute Respiratory Tract Infection and 25-Hydroxyvitamin D Concentration: A Systematic Review and Meta-Analysis

Pham H, Rahman A, Majidi A, Waterhouse M, Neale RE

International journal of environmental research and public health · 95 citations

How it was studied

Design
Meta-analysis (indexed by PubMed)
Studied in
People
Main outcome
Clinical events such as disease or death

Who paid for it

Funding
Independent funding
University or hospital
University of Queensland
Government
National Health and Medical Research Council

Based on 2 listed funder(s) and full-text disclosure statement.

Publication

Published
2019-08-21 · Int J Environ Res Public Health · vol. 16 · issue 17 · p. 3020
Publisher
Multidisciplinary Digital Publishing Institute
Cited
141 citations · more than 96% of similar papers · 4.2× the field average
Impact
Top 10% most cited in its field
References
56 works
Access
Open access (journal) · CC-BY
Research areas
Vitamin D Research Studies · Asthma and respiratory diseases · Chronic Obstructive Pulmonary Disease (COPD) Research
Keywords
Meta-analysis, Confidence interval, Odds ratio, Vitamin D and neurology, Medicine, Internal medicine, Respiratory tract infections, Observational study, Gastroenterology, vitamin D deficiency, Respiratory system
MeSH
humans, respiratory tract infections, acute disease, vitamins, vitamin d, observational studies as topic

5 authors

From AU

  • Hai D. Pham · correspondingThe University of Queensland; QIMR Berghofer Medical Research Institute
  • Aninda RahmanThe University of Queensland; QIMR Berghofer Medical Research Institute
  • Azam MajidiThe University of Queensland; QIMR Berghofer Medical Research Institute
  • Mary A. WaterhouseQIMR Berghofer Medical Research Institute
  • Rachel E. NealeThe University of Queensland; QIMR Berghofer Medical Research Institute

Abstract

Observational studies and randomised controlled studies suggest that vitamin D plays a role in the prevention of acute respiratory tract infection (ARTI); however, findings are inconsistent and the optimal serum 25-hydroxyvitamin D (25(OH)D) concentration remains unclear. To review the link between 25(OH)D concentration and ARTI, we searched PubMed and EMBASE databases to identify observational studies reporting the association between 25(OH)D concentration and risk or severity of ARTI. We used random-effects meta-analysis to pool findings across studies. Twenty-four studies were included in the review, 14 were included in the meta-analysis of ARTI risk and five in the meta-analysis of severity. Serum 25(OH)D concentration was inversely associated with risk and severity of ARTI; pooled odds ratios (95% confidence interval) were 1.83 (1.42-2.37) and 2.46 (1.65-3.66), respectively, comparing the lowest with the highest 25(OH)D category. For each 10 nmol/L decrease in 25(OH)D concentration, the odds of ARTI increased by 1.02 (0.97-1.07). This was a non-linear trend, with the sharpest increase in risk of ARTI occurring at 25(OH)D concentration < 37.5 nmol/L. In conclusion, there is an inverse non-linear association between 25(OH)D concentration and ARTI.

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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