CD44 and cancer: Regarding the correlation between the examined expression markers and FIGO stage, there was a moderately positive statistically significant association between CD44 and FIGO (r = 0.4028, p = 0.0001) and VDR and FIGO (r = 0.6496, p < 0.0001), whilst there was no association between CD133 and cancer grade (r = −0.08114, 0.3569) or FIGO stage (r = −0.07031, 0.4249).