TABLE 1.

Pin1 expression in benign prostate and primary and metastatic prostate cancer^a

Pin1 expression staining result	No. of samples of:
	Benign prostate	Primary PCa	Metastatic PCa
Negative	16	10	0
Weak	9	14	5
Moderate	0	6	10
Strong	0	0	14
Total no. of samples	25	30	29

^aDifferences between Pin1 expression in the benign versus primary PCa and in primary versus metastatic PCa were significant (exact two-sided; P = 0.008 and P < 0.0001, respectively) using Kruskall-Wallis tests.