MKI67 and neoplasm: Lower Ki-67 ranking predicted longer PFS (HR: 1.17, 95% CI: 1.03, 1.33; p = 0.02) and superior tumour growth control (HR 1.10, 95% CI: 0.99, 1.22; p = 0.09), although the latter was not statistically significant at the 5% level.