Table 1. Patient clinical characteristics.

Patient ID	Age (years)	PSA (ng/ml)	T-category	Biopsy Location	GS† (selection)	GS‡ (review)
P1	76	10.8	T1c	Left mid posterior PZ	GS 7	GS 7
				Left mid posterior PZ	GS 7	GS 7
				Right apex posterior PZ	GS 7	GS 6
P2	85	6.2	T1c	Left apex posterior PZ	GS 8	GS 8
				Left apex posterior PZ	GS 8	no tumor#
				Left mid posterior PZ	GS 8	no tumor#
P3	67	4.4	T1c	Left apex lateral PZ	GS 7	GS 7
				Left mid lateral PZ	GS 7	GS 8
				Left mid lateral PZ	GS 7	GS 7
P4	61	5.1	T1c	Right apex posterior PZ	GS 6	GS 6
				Right mid posterior PZ	GS 6	GS 6
				Left apex lateral PZ	GS 6	GS 6
				Left mid anterior TZ	GS 7	GS 6
P5	65	4.2	T1c	Left mid anterior TZ	GS 7	GS 6
				Left mid anterior TZ	GS 6	GS 6
				Left base anterior TZ	GS 6	GS 6
P6	72	10.8	cT2b	Left apex posterior PZ	GS 7	GS 9
				Left mid posterior PZ	GS 7	GS 7
				Left mid posterior PZ	GS 7	GS 9

Abbreviations: PSA = Prostate Specific Antigen; GS = Gleason Score; PZ = Peripheral Zone; TZ = Transition Zone

^*Biopsies in different color are taken from distinct lesions in the prostate;

^†GS at selection of patients for gene expression analysis;

^‡GS at re-review;

^#Not enough tumor for gene expression analysis.