Table 2. PDEF expression in prostate tissue: matched samples of cancer v/s benign, Cancer v/s PIN and PIN v/s benign.

Type of Match X v/s Y	Number of matched samples	Number of samples with more* PDEF in X	Number of samples with more* PDEF in Y	P value
Cancer v/s benign	101	68 (68%)	33 (32%)	0.0006
Cancer v/s PIN	41	28 (70%)	13 (30%)	0.0275
PIN v/s benign	45	19 (42%)	26 (58%)	0.3713

^*More PDEF reflects higher percent of PDEF-positive epithelial cells or higher intensity of staining or both.