In patients with G3 tumours, a Ki‐67 index above 50 per cent was associated with significantly worse median survival than a Ki‐67 index of 50 per cent or less (DFS: 7 versus 15 months respectively, P = 0·035; DSS: 13 versus 29 months, P = 0·038). The gene discussed is MKI67; the disease is neoplasm.