Table 3

 Distribution of mean first age of infection with P aeruginosa according to TNFα genotypes

TNFα SNPMean (SD) first age of infection with P aeruginosa*Mean difference95% CIp value†
*The analysis was performed by a two sample t test. There may be a difference in the number of genotypes typed for the different SNPs because gap filling of data could not always be done successfully.
†Significant results are shown in bold.
ins/ins (n = 103)ins/del (n = 16)
+691g ins/del 8.3 (4.6)11.4 (6.0)3.10.5 to 5.6 0.018
cc (n = 88)ct+tt (n = 27)
−851c/t 8.6 (4.8)9.2 (4.3)0.5−2.6 to 1.50.60
gg (n = 89)ga+aa (n = 27)
−308g/a 8.5 (4.5)9.5 (5.2)1.0−1.1 to 3.00.37
gg (n = 104)ga+aa (n = 12)
−238g/a 8.8 (4.4)7.9 (6.6)0.9−5.2 to 3.30.64