MKI67 and neoplasm: In the subgroup analysis, the Ki-67 cutoff at 30% had prognostic and predictive potential for DFS with only either tumor size ≤2 cm (p = 0.008) or lymph node-negative (N−) (p = 0.038) in multivariate analyses compared with tumor size >2 cm (p = 0.275) and lymph node-positive (N+) (p = 0.156).