• Berrin Er, Ebru Çelebioğlu, Ebru Yalçin, Deniz Doğru, Özlem Erden Aki, Ömrüm Uzun, Murat Akova, Uğur Özçelik, Nural Kiper, and Salih Emri.
• Medical Intensive Care Unit, Faculty of Medicine, Hacettepe University, Ankara, Turkey
• Turk J Med Sci. 2020 Jun 23; 50 (4): 945952945-952.

Background/AimThe patients with cystic fibrosis (CF) are living longer compared to the past, but respiratory failure is still the most common cause of mortality. The aim of this study is to investigate factors associated with severe lung disease in a cohort of adult patients with CF.Materials And MethodsDemographic data, clinical and laboratory findings of the patients aged 18 years and more were collected and the patients were grouped according to forced expiratory volume in 1 s (FEV1) as severe group: <40% and nonsevere ≥40%. Associations were investigated between groups and clinical outcomes.ResultsA total of 76 patients were enrolled in the study. The mean age was 24.5 ± 5.25 years and 36 (47.4%) patients were female. In the severe group; the mean age was higher (27.1 ± 6.0 vs 23.6 ± 4.7, P = 0.013), the median Chrispin-Norman score of severe lung disease group was higher (14 (6–22) vs 5.5 (0–20), P < 0.001), hospitalization at least once in a year for intravenous antibiotic was more common (12/18 (66%) vs 19/58 (32%), P = 0.014). There was a positive correlation between body mass index (BMI) and lung function, indicating that lower nutritional status was related to lower FEV1, r2 = 0.21, P < 0.001. The median FEV1% was lower in patients with CF-related diabetes (38 (14–95) vs 66 (13–121), P = 0.042). Dornase alpha use and physiotherapy rate were higher in severe lung disease group (P = 0.008 and P < 0.001, respectively).ConclusionLower BMI, older age, presence of CF-related diabetes, higher radiologic scores, use of dornase alpha and physiotherapy and higher hospitalization rate for intravenous antibiotic therapy are significantly associated with severe lung disease.This work is licensed under a Creative Commons Attribution 4.0 International License.

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