The results showed that family history, previous medical history, pathological category, clinical stages, lymphatic metastasis, distant metastases, vessel carcinoma embolus, and treatments were significantly correlated with the CD4+ level (P < 0.05), whereas age, age of menarche, menopause, tumor size, and differentiation degree were not correlated with the CD4+ level (P > 0.05) (Table 2). The gene discussed is CD4; the disease is metastasis.