Prevalence of allergic diseases in Izmir Province, Turkey

Background The aim of the present study is to determine the prevalence of allergic diseases and related risk factors in Izmir, Turkey, and to assess the positive immunoglobulin E (IgE) levels against common allergens. Methods The questionnaires were completed via face-to-face interview with a total of 2937 individuals. Specific IgE was studied in the serum samples by enzyme-linked immunosorbent assay (ELISA). This cross-sectional population-based study comprised adolescents over the age of 15 years and adults of Izmir province. Results In Izmir, the prevalence of self-reported allergy was 35.5%. Allergy was statistically significantly more common in females, university graduates, in those with high income, with family history for allergy, aged 40-49 years, those living in a flat, keeping pet(s), and in those using central heating. The prevalence of atopy according to the serum IgE levels (Class 3 with any of 3 IgEs) was found 1.6%. Conclusion In conclusion, the prevalence of atopy was found lower in Izmir as compared to the results of other studies.