Genotype TT Genotype(%) CT Genotype(%) CC Genotype(%) T allele Frequency C allele Frequency Chi-Square P value
Patients
(n=160)
52
(32.5)
75
(46.9)
33
(20.6)
0.56 0.44 20.1 < 0.0001
Controls
(n=160)
22
(13.8)
78
(48.8)
60
(37.4)
0.38 0.62    
Table 2: Genotype frequencies of CASP9 (-712C>T) among NSCLC cases and controls.