Résumé :
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[BDSP. Notice produite par INIST-CNRS r98R0xF8. Diffusion soumise à autorisation]. The impact of low vitamin D status on asthma development is unclear. The authors investigated the relation between the baseline serum 25-hydroxyvitamin D (25 (OH) D) level and incident asthma in adults, including possible effect modification by allergy status, using allergic rhinitis as a proxy measure. A cohort of 25,616 Norwegian adults aged 19-55 years participated in 2 surveys of the Nord-Trondelag Health Study known as HUNT 2 (1995-1997) and HUNT 3 (2006-2008). Of this cohort, a nested case-control study included 584 new-onset asthma cases and 1,958 nonasthma controls whose baseline serum 25 (OH) D levels were measured. After adjustment for potential asthma risk factors, the baseline serum level of 25 (OH) D (
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