25-hydroxy vitamin D levels are associated with childhood asthma in a population-based study in Peru.

ABSTRACT:

Background

Vitamin D deficiency may be associated with an increased risk of asthma.

Objective

We studied the association between 25-hydroxy (25-OH) vitamin D deficiency and asthma prevalence in two Peruvian populations close to the equator but with disparate degrees of urbanization.

Methods

We conducted a population-based study in 1441 children in two communities in Peru, of which 1134 (79%) provided a blood sample for 25-OH vitamin D analysis.

Results

In these 1134 children, mean age was 14.8 years; 52% were boys; asthma and atopy prevalence was 12% in Lima vs. 3% in Tumbes (P < 0.001) and 59% in Lima vs. 41% in Tumbes (P < 0.001), respectively; and, mean 25-OH vitamin D level was 20.8 ng/mL in Lima vs. 30.1 ng/mL in Tumbes (P < 0.001). Prevalence of 25-OH vit

SUBMITTER: Checkley W 

PROVIDER: S-EPMC4176605 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature