RIPK4 and neoplasm: High RIPK4 expression was significantly related to clinical stage (60.7% vs. 46.5% for stage IB2-IIB and IB1; P = 0.048), tumor size (66.7% vs. 47.2% for > 4 cm and ≤4 cm; P = 0.017) and distant metastasis (72.0% vs. 49.7% for + and −; P = 0.037).