Fig. 2From: Association of PD-1 polymorphisms with the risk and prognosis of lung adenocarcinoma in the northeastern Chinese Han populationAssociation of PD-1 SNPs with lung adenocarcinoma stages in different models. a allele model; b dominant model; c recessive model. The dashed red lines indicate the significance threshold (p_value = 0.05) using chi-square testBack to article page