INHBB and metastatic malignant neoplasm in the lymph nodes: Overexpression of INHBB was significantly and positively associated with invasion depth (T3 and T4 vs. T1 and T2, OR: 1.78, 95% CI: 1.16-2.75, P = 0.008), lymph node metastasis (yes vs. no, OR: 1.80, 95% CI: 1.27-2.55, P < 0.001), distant metastasis (yes vs. no, OR: 1.76, 95% CI: 1.08-2.91, P = 0.026), and TNM stage (stages III and IV vs. stages I and II, OR: 1.63, 95% CI: 1.16-2.31, P = 0.005).