Maternal vitamin D status during pregnancy and child outcomes
- PMID: 17311057
- PMCID: PMC2629513
- DOI: 10.1038/sj.ejcn.1602680
Maternal vitamin D status during pregnancy and child outcomes
Abstract
Objective: To investigate whether exposure to high maternal concentrations of 25(OH)-vitamin D in pregnancy poses any risk to the child.
Design: Prospective study.
Setting: Princess Anne Maternity Hospital, Southampton, UK.
Subjects: A group of 596 pregnant women were recruited. A total of 466 (78%) children were examined at birth, 440 (74%) at age 9 months and 178 (30%) at age 9 years.
Methods: Maternal 25 (OH)-vitamin D concentrations were measured in late pregnancy. Anthropometry of the child was recorded at birth, 9 months and 9 years. At 9 months, atopic eczema was assessed. At 9 years, children had an echocardiogram and a dual energy x-ray absorptiometry scan, blood pressure, arterial compliance and carotid intima-media thickness were measured and intelligence and psychological function assessed.
Results: There were no associations between maternal 25(OH)-vitamin D concentrations and the child's body size or measures of the child's intelligence, psychological health or cardiovascular system. Children whose mothers had a 25(OH)-vitamin D concentration in pregnancy >75 nmol/l had an increased risk of eczema on examination at 9 months (OR 3.26, 95% CI 1.15-9.29, P=0.025) and asthma at age 9 years (OR 5.40, 95% CI, 1.09-26.65, P=0.038) compared to children whose mothers had a concentration of <30 nmol/l.
Conclusion: Exposure to maternal concentrations of 25(OH)-vitamin D in pregnancy in excess of 75 nmol/l does not appear to influence the child's intelligence, psychological health or cardiovascular system; there could be an increased risk of atopic disorders, but this needs confirmation in other studies.
Figures
References
-
- Alfaham M, Woodhead S, Pask G, Davies D. Vitamin D deficiency: a concern in pregnant Asian women. Br J Nutr. 1995b;73:881–887. - PubMed
-
- Alfaham M, Woodhead S, Pask G, Davies D. Vitamin D deficiency: a concern in pregnant Asian women. Br J Nutr. 1995a;73:881–887. - PubMed
-
- Bonner SE, Dawson R, Martyn CN, Greenwald SE. Validation and use of an optical technique for the measurement of pulse wave velocity in conduit arteries. Fortschritt Berichte. 1995;107:43–52.
Publication types
MeSH terms
Substances
Grants and funding
- MC_UP_A620_1015/MRC_/Medical Research Council/United Kingdom
- MC_U147574237/MRC_/Medical Research Council/United Kingdom
- MC_U147585827/MRC_/Medical Research Council/United Kingdom
- MC_UP_A620_1014/MRC_/Medical Research Council/United Kingdom
- U.1475.00.003.00010.02(74237)/MRC_/Medical Research Council/United Kingdom
LinkOut - more resources
Full Text Sources
Other Literature Sources
Medical