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Wheezing reduced 35 percent if vitamin D added during pregnancy – April 2015

Vitamin D exposure during pregnancy, but not early childhood, is associated with risk of childhood wheezing.

J Dev Orig Health Dis. 2015 Apr 17:1-9.
Anderson LN1, Chen Y2, Omand JA3, Birken CS1, Parkin PC1, To T1, Maguire JL3; TARGet Kids Collaboration.

The association between vitamin D and wheezing in early childhood is unclear. The primary objective of this study was to evaluate the association between vitamin D exposure, during both pregnancy and childhood, and early childhood wheezing. Secondary objectives were to evaluate the associations between vitamin D exposures and asthma and wheezing severity. We conducted a cohort study of children (0-5 years) recruited from 2008 to 2013 through the TARGet Kids! primary-care research network. Vitamin D exposures included maternal vitamin D supplement use during pregnancy, child vitamin D supplementation and children's 25-hydroxyvitamin D (25(OH)D) concentrations. The outcomes measured were parent-reported childhood wheezing, diagnosed asthma and wheezing severity. Vitamin D supplement and wheezing data were available for 2478 children, and blood samples were available for 1275 children. Adjusted odds ratios (aOR) were estimated using logistic regression adjusted for age, sex, ethnicity, body mass index, birth weight, outdoor play, breastfeeding duration, daycare status, parental smoking and family history of asthma. Vitamin D supplementation during pregnancy was associated with lower odds of childhood wheezing (aOR=0.65; 95% CI: 0.46-0.93). In early childhood, neither 25(OH)D (aOR per 10 nmol/l=1.01; 95% CI: 0.96-1.06) nor vitamin D supplementation (aOR=1.00; 95% CI: 0.81-1.23) was associated with wheezing. No significant associations were observed with diagnosed asthma or wheezing severity. Vitamin D supplementation during pregnancy was associated with reduced odds of wheezing, but child vitamin D supplementation and childhood 25(OH)D were not associated with reduced wheezing. The timing of exposure may be important in understanding the association between vitamin D and childhood wheezing.

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Items found: 15
Title Modified
Vitamin D levels are low during Recurrent Wheezing - Feb 2024 24 Feb, 2024
Asthma by age 7 if wheezing before preschools and poor vitamin D Receptor - May 2023 21 Dec, 2023
Recurrent Wheezing in children is associated with low Vitamin D – several studies 04 Sep, 2022
Wheezing and asthmatic children have weaker Vitamin D responses - May 2022 19 May, 2022
Vitamin D reduces RTI, Omega-3 reduces wheezing or asthma – March 2022 11 Apr, 2022
Viral infection wheezing 24X more likely if less than 15 ng of Vitamin D – Dec 2019 04 Apr, 2020
Gene which predicts wheezing is associated with low vitamin D – Oct 2019 18 Oct, 2019
Black infant recurrent wheezing rate dropped from 42 percent to 31 percent with just 400 IU of vitamin D – RCT Dec 2018 06 Dec, 2018
Recurrent wheeze 2X more likely if endotoxin (on some bacteria) and low vitamin D – May 2016 15 Dec, 2017
Wheezing reduced 35 percent if vitamin D added during pregnancy – April 2015 10 May, 2016
2X higher risk of wheezing and asthma if modified receptor genes, even if vitamin D levels OK – Sept 2015 09 Sep, 2015
Infant wheezing 40 percent less likely if mother supplemented with vitamin D, vitamin E, or Zinc – meta-analysis Aug 2015 25 Aug, 2015
Children who wheezed were 2.7X more likely to have little vitamin D – April 2014 18 Apr, 2015
Vitamin D and wheeze – especially in seniors – Aug 2011 26 Apr, 2014
Single dose of 200,000 IU of vitamin D during pregnancy did not reduce wheezing 3 years later – June 2013 30 Jun, 2013