Staphylococcus aureus nasal carriage is associated with serum 25-hydroxyvitamin D levels, gender and smoking status. The Tromsø Staph and Skin Study
2011; Springer Science+Business Media; Volume: 31; Issue: 4 Linguagem: Inglês
10.1007/s10096-011-1331-x
ISSN1435-4373
AutoresKarina Standahl Olsen, Birgit Falch, Kjersti Danielsen, Mona Johannessen, Johanna U. Ericson, Inger Thune, Guri Grimnes, Rolf Jorde, Gunnar Skov Simonsen, Anne‐Sofie Furberg,
Tópico(s)Drug-Induced Adverse Reactions
ResumoVitamin D induces the expression of antimicrobial peptides with activity against Staphylococcus aureus. Thus, we studied the association between serum 25-hydroxyvitamin D (25(OH)D) and S. aureus nasal colonization and carriage. Nasal swabs, blood samples and clinical data from 2,115 women and 1,674 men, aged 30-87 years, were collected in the Tromsø Staph and Skin Study 2007-08, as part of the population-based sixth Tromsø Study. Multivariate logistic regression analyses were stratified by recognized risk factors for S. aureus carriage: sex, age and smoking. In non-smoking men, we observed a 6.6% and 6.7% decrease in the probability of S. aureus colonization and carriage, respectively, by each 5 nmol/l increase in serum 25(OH)D concentration (P < 0.001 and P = 0.001), and serum 25(OH)D > 59 nmol/l and ≥75 nmol/l as thresholds for ~30% and ~50% reduction in S. aureus colonization and carriage. In non-smoking men aged 44-60 years, the odds ratio for S. aureus colonization was 0.44 (95% confidence interval, 0.28-0.69) in the top tertile of serum 25(OH)D versus the bottom tertile. In women and smokers there were no such associations. Our study supports that serum vitamin D is a determinant of S. aureus colonization and carriage.
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