Patients with tumours exhibiting high URG4 expression had a significantly shorter OS compared to those with low-URG4-expressing tumours in the Ib1-Ib2 subgroup (log-rank test, P < 0.0001, Figure 4c), in those without lymph node metastasis (log-rank test, P < 0.0001, Figure 4d) and in those receiving concurrent chemotherapy and radiotherapy (log-rank test, P < 0.0001, Figure 4e). This evidence concerns the gene URGCP and neoplasm.