Correlation between TNF-α -308 and +489 Gene Polymorphism and Acute Exacerbation of Chronic Obstructive Pulmonary Diseases

Table 3

Comparison of the different indicators for the GG genotype and non-GG genotypes.

Group	No. of samples	Adjacent arterial diameter	Bronchial wall thickness	Bronchial artery ratio	Bronchial wall grading
TNF-α-308
GG	173
Non-GG	25
value		0.037	0.014	0.017	0.022
TNF-α +489
GG	116
Non-GG	82
value		0.003	0.003	0.019	0.031