Table 2.

Clinico-pathological parameters in correlation to Ki67 protein expression.

	Ki67 Expression a
	n	<15%	≥15%	p-Value b	Spearman ρ
Parameter:
Age at diagnosis
<70 years	67	31	36	0.083	0.146
≥70 years	75	24	51
Gender
female	31	14	17	0.408	0.070
male	111	41	70
Histological tumor grade
low grade	49	34	15	<0.001	0.457
high grade	93	21	72
Tumor stage
pTa	82	37	45	0.069	0.175
pT1–pT4	60	18	42

^a According to [11]; ^b Fisher’s exact test; Significant p-values are marked in bold face.