In concordance with the literature on clinical effect of Tregs in NSCLC prognosis, tumors with high levels of Tregs (p = 0.0073), Treg/T cells (p = 0.011) and Treg/non-Treg CD4+ T cell ratio (p = 0.011) (Figure 2B) had significantly greater probability of recurrence. This evidence concerns the gene CD4 and non-small cell lung carcinoma.