Our study first showed, using a large French CF cohort (n = 3,257), that pwCF carrying at least one minor allele G of the SLC6A14 rs3788766 SNP exhibit reduced lung function compared to those carrying two major allele A, confirming prior studies (Li et al., 2014; Pereira et al., 2017). The gene discussed is SLC6A14; the disease is cystic fibrosis.