Univariate analyses (Table 2) revealed that patients with larger tumor size (HR: 2.8; 95% CI = 1.5, 5.2; p = 0.002), histological grade 3 (HR: 8.1; 95% CI = 1.1, 58.8; p = 0.040), necrosis (HR: 1.8; 95% CI = 1.0, 3.2; p = 0.042), vascular invasion (HR: 2.6; 95% CI = 1.4, 4.6; p = 0.001), positive lymph-nodes (HR: 2.6; 95% CI = 1.4, 4.6; p = 0.001), absence of hormone receptors (HR: 1.8; 95% CI = 1.0, 3.3; p = 0.039) and ID4 overexpression (HR: 2.1; 95% CI = 1.2, 3.9; p = 0.016) had shorter OS. Here, ID4 is linked to neoplasm.