Introduction:

The general population has impaired serum Vitamin D (VD) levels. Poor values are associated with allergic diseases.

Objective:

The objective of the study was to determine the prevalence of VD deficiency and associated factors in patients with allergic rhinitis and asthma.

Material and methods:

This is a descriptive study in children 3-14 years old, with allergic rhinitis and asthma sensitized to aeroallergens identified by skin prick tests. We measured serum 25-hydroxy VD levels and evaluated associated factors.

Results:

Sixty-three patients were included, with a mean age of 7.25 years old, 54% were female. Mean weight was 26.7 kg, mean VD levels were 23.66 ng/ml (± 7.28), 22.2% had sufficient levels, 47.6% had insufficient levels, and 30.2% had deficient levels. We found an association with increased risk of VD deficiency in patients ages 12-14 years old (odds ratio [OR] 7.5, confidence interval [CI] 1.306-43.066), the skin type V with (OR 3.444, IC 2.334-5.083), and the lack of consumption of cod liver supplements (OR 1.475, CI 1.237-1.759).

Conclusions:

This sample of Mexican patients with allergic rhinitis and asthma showed the high prevalence of both VD deficiency and insufficiency. Consumption of cod liver supplements was a protective factor for deficiency. No association between VD deficiency and severity of allergic rhinitis and asthma was found in this sample of patients in the Mexican General Hospital of Mexico.

        · text in English     · English ( pdf )