MKI67 and neoplasm: The NIC values of the low-level Ki-67 expression tumours were significantly higher than those of the high-level Ki-67 expression tumours in both the AP (0.18 ± 0.08 versus 0.12 ± 0.04, P < 0.001) and VP (0.47 ± 0.11 versus 0.33 ± 0.07, P < 0.001).