Table 2. Genotype distribution and allele frequencies of HER2 (-3444C/T) among lung adenocarcinoma patients and controls.

Variables	CC	CT	TT	C allele frequency	T allele frequency	P value
Patients (n=100)	34 (34%)	59 (59%)	7 (7%)	0.63	0.37	0.001
Controls (n=100)	58 (58%)	40 (40%)	2 (2%)	0.78	0.22