BMI, body mass index; IgE, immunoglobulin E; CFRD, cystic fibrosis-related diabetes; FEV1, forced expiratory volume in 1 second; MRSA, methicillin-resistant Staphylococcus aureus; NTM, nontuberculous mycobacteria; BAL, bronchoalveolar lavage; CT, computed tomography. This evidence concerns the gene IGHE and cystic fibrosis-related diabetes.