However, NSCLC patients with high anti-FOXP3 IgG levels had shorter survival than those with low anti-Foxp3 IgG levels (χ2 = 3.75, P = 0.05), but the statistical significance failed to survive the correction for age, sex, stages and histological types of NSCLC (Table 6 and Fig. 2). This evidence concerns the gene FOXP3 and non-small cell lung carcinoma.