Tehran University of Medical Sciences Iranian Journal of Allergy, Asthma and Immunology 1735-1502 0 0 2026 10 12 1 15 Burçin Karacabey Department of Pediatrics, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Türkiye Ahmet Hakan Gedik Department of Pediatrics, Bezmialem Vakif University, Faculty of Medicine, Istanbul, Türkiye Erkan Çakır Department of Pediatric Pulmonology, Bezmialem Vakif University Faculty of Medicine, Istanbul, Türkiye Nezih Varol Faculty of Health Education, Marmara University, Istanbul, Türkiye Bülent Karadağ Division of Pediatric Pulmonology, Marmara University Faculty of Medicine, Istanbul, Türkiye Refika Ersu Division of Pediatric Pulmonology, Marmara University Faculty of Medicine, Istanbul, Türkiye Fazilet Karakoç Division of Pediatric Pulmonology, Marmara University Faculty of Medicine, Istanbul, Türkiye Elif Dağlı Division of Pediatric Pulmonology, Marmara University Faculty of Medicine, Istanbul, Türkiye 2026 07 08 2026 08 08 Working adolescents are exposed to occupational and environmental risk factors that may influence allergic disease development. Epidemiological data on this vulnerable population remain limited. To examine temporal trends in the prevalence of asthma and allergic diseases and identify associated risk factors among working adolescents. Two repeated cross-sectional surveys were conducted in 2008 (n=353) and 2013 (n=554) at a vocational training center in Istanbul, Türkiye, using the International Study of Asthma and Allergies in Childhood (ISAAC) methodology. Physician-diagnosed asthma, allergic rhinitis, and atopic dermatitis were assessed using the standardized Turkish version of the ISAAC questionnaire. Multivariable logistic regression was used to identify independent risk factors. Between 2008 and 2013, the prevalence of physician-diagnosed asthma increased from 2.8% to 6.9%, that of allergic rhinitis increased from 2.5% to 9.0%, and that of atopic dermatitis from 3.1% to 8.1%. In multivariable analyses, familial allergy was associated with all 3 conditions and regular smoking was associated with asthma and allergic rhinitis. Male sex was associated with a lower likelihood of asthma and allergic rhinitis. Employment in the hairdressing sector was strongly associated with atopic dermatitis (adjusted odds ratio, 24.05; 95% confidence interval, 3.27–176.74). The prevalence of allergic diseases increased substantially among working adolescents over 5 years. A family history of allergy, smoking, and hairdressing employment emerged as key risk factors. Targeted preventive strategies addressing modifiable behavioral and occupational exposures are warranted for this vulnerable population. https://ijaai.tums.ac.ir/index.php/ijaai/article/view/4914 https://ijaai.tums.ac.ir/index.php/ijaai/article/download/4914/2440