CDKN2A and cervical cancer: In agreement with the studies from Lin et al. [23] and Huang et al. [6], which showed that the meta-analysis of patients with high P16INK4A expression cervical cancer had significantly better prognosis, both of these studies and our present study did not find an association between the P16INK4A expression of tumors with stage, tumor size, histologic grade or vascular invasion.