SFTPB and cystic fibrosis: The data in Table 3 showed that (1) SFTPB SNP rs7316 is associated with CF (X2 = 6.9689, p = 0.0083); (2) another two SFTPB SNPs rs2077079 and rs3024798 are associated with CF through an intragenic interaction (X2 = 3.2688, p = 0.0325).