CDKN2B-AS1 and metastatic malignant neoplasm in the lymph nodes: There was a significant positive association between the high expression level of ANRIL and lymph node metastasis (OR = 4.77, 95% CI: 2.30–9.91, P < 0.001) by a random effects model (I2 = 73.2, P = 0.001) and negative association with poor grade cancer (OR = 3.44, 95% CI: 1.68–7.08) by a random-effects model (I2 = 77.9, P = 0.000).