Control Asthma OR 95% CI P
  No. % No. %
Genotype              
CC 11 18.3 26 52.0 4.298 1.789 – 10.321 0.001
CT® 40 66.7 22 44.0      
TT 9 15.0 2 4.0 0.404 0.080 – 2.038 FEp = 0.320
CC + TT 20 23.3 28 56.0 2.545 1.173 – 5.523 0.017*
Allele frequency              
C® 62 51.7 74 74.0      
T 58 43.3 26 26.0 0.376 0.212 – 0.666 p# = 0.001*
p#: p value for Chi square test,FEp : p value for Fisher Exact test, *: Statistical significance at p ≤ 0.05
Table 3A: The genotype and allele frequencies of CD40 − 1C/T between asthmatic patients and controls.