Figure 3

Correlation between CDKSAs and Ki-67 index (percent of Ki-67-positive cells of all CK20-positive tumour cells). Cases were plotted on a scatter diagram according to Ki-67 index against CDK1SA (left), or CDK2SA (right). Red circle: tumour with distant metastasis. Ki-67 showed a weak but significant positive correlation with CDK2SA (Spearman’s ρ=0.17, P=0.016), but not with CDK1SA (Spearman’s ρ=0.04, P=0.54).