Current Status of Cystic Fibrosis in Türkiye: Data from the National Registry.

objectiveThe Cystic Fibrosis Registry of Türkiye (CFRT) was established by the Turkish Pediatric Respiratory Diseases and Cystic Fibrosis Society and has provided detailed information on demographic, clinical, genetic, and treatment-related aspects of cystic fibrosis (CF) patients since 2017. We aimed to describe the current status of CF in Türkiye using CFRT's 2023 annual data. MATERIAL AND

methodsDemographic, clinical, and treatment data were taken from CFRT's 2023 record.

resultsIn 2023, 2,258 patients from 34 centers were recorded. The median age of patients was 9.1 years, and 46.9% were female, with a median age at diagnosis of 0.3 years. Only 14.9% of the patients were older than 18 years. Genetic analyses were completed in 97.3% of patients. The most common variant, F508del, had a total variant frequency of 22.1%. The median percent predicted FEV1 and FVC were 88.0 and 94.0 in those aged 6-17 years 71.0 and 84.0 in those aged ≥18 years, respectively. The median values of body mass index z-scores were -0.5, and -0.5 for patients 2-18 and older than 18 years, respectively. Chronic colonization with

conclusionThe CFRT report provides a valuable resource showing the clinical and laboratory data of patients with CF in the country.