Abstract
Background: In the past two decades, the prevalence of asthma, eczema, and allergic rhinitis has increased among school-aged children in the Central Black Sea region of Turkey. This increase is consistent with national and international data, reflecting the impact and temporal changes of allergic diseases on the community. A similar increasing trend is also observed worldwide. This study aims to contribute to the development of health policies related to allergic diseases among Turkish children in the Central Black Sea region. Materials and Methods: This study compares the results of two cross-sectional surveys conducted in schools in and around Samsun, Turkey, between the years 2006 and 2022, examining changes in the prevalence of specific allergic diseases such as asthma, allergic rhinitis, and atopic eczema. Utilizing the Turkish translation of the International Study of Asthma and Allergies in Childhood protocol, the research encompassed a total of 1,310 and 3,219 children, respectively. Results: In the recent study conducted in 2022, the prevalence of asthma and allergic bronchitis diagnosed by physicians was found to be 10.5% and 4.6%, respectively. In addition, the prevalence of allergic rhinitis was determined to be 3.1% and the prevalence of atopic dermatitis was 2.5%. Moreover, previously unidentified rates of food allergy were determined to be 2.5%, and drug allergy was found to be 2.4%. Furthermore, a comparison with a cross-sectional study conducted in the same region 20 years ago revealed a statistically significant increase in the prevalence of physician-diagnosed asthma and allergic bronchitis (with P-values of 0.0375 and 0.0107, respectively). Discussion: The findings of this study suggest a similar trend of increasing prevalence of allergic diseases when compared with similar studies at national and global levels. Consistent with trends identified in the international literature, Turkey is also affected by the rising prevalence of allergic diseases.
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