期刊
CLINICAL AND EXPERIMENTAL ALLERGY
卷 39, 期 6, 页码 875-882出版社
WILEY
DOI: 10.1111/j.1365-2222.2009.03234.x
关键词
asthma; children; eczema; pregnancy; rhinitis; vitamin D intake
资金
- Academy of Finland [63672, 79685, 79686, 80846, 201988, 210632]
- Finnish Diabetes Association
- Finnish Diabetes Research Foundation
- Finnish Pediatric Research Foundation
- HAme Foundation of the Finnish Culture Fund
- Juho Vainio Foundation
- Yrjo Jahnsson Foundation
- Medical Research Funds
- Turku, Oulu
- Tampere University Hospitals, JDRF [197032, 4-1998-274, 4-1999-731, 4-2001-435]
- Novo Nordisk Foundation
- EU Biomed 2 Program [BMH4-CT98-3314]
Vitamin D is known to have a number of immunological effects and it may play a role in preventing allergic diseases. To study the effect of maternal intake of vitamin D during pregnancy on the emergence of asthma, allergic rhinitis (AR), and atopic eczema by the age of 5 years in children with HLA-DQB1-conferred susceptibility for type 1 diabetes. Children (1669) participating in the population-based birth cohort study were followed for asthma, AR, and atopic eczema assessed by validated questionnaire at 5 years. Maternal diet was assessed by a food-frequency questionnaire. The mean maternal intake of vitamin D was 5.1 (SD 2.6) mu g from food and 1.4 (2.6) mu g from supplements. Only 32% of the women were taking vitamin D supplements. When adjusted for potential confounders, maternal intake of vitamin D from food was negatively related to risk of asthma [hazard ratio (HR) 0.80; 95% confidence interval (CI) 0.64-0.99] and AR [HR 0.85; 95% CI 0.75-0.97]. Vitamin D supplements alone were not associated with any outcome. Adjustment for maternal intake of other dietary factors did not change the results. Maternal vitamin D intake from foods during pregnancy may be negatively associated with risk of asthma and AR in childhood.
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