Table 2.

Comparison of mean serum values for the non-cancer and cancer groups for subjects in the 2-10 ng/mL PSA range (n=89)

	Non-Cancer			Cancer			p-value
	Mean±SD	Median	N	Mean±SD	Median	N	ns
PSA, ng/mL	5.82±2.02	5.49	39	5.60±2.01	5.41	50	ns
Free PSA, ng/mL	0.92±0.460	0.84	39	0.82±0.42	0.80	50	ns
[-2]proPSA, pg/mL	9.31±4.52	7.40	39	11.97±6.38	10.09	50	0.03
BPSA, pg/mL	289.1±273.6	216.5	38	224.0±149.2	197.9	49	ns
%fPSA	16.4±6.82	15.4	39	15.6±6.89	15.2	50	ns
%[-2]proPSA	1.10±0.43	1.08	39	1.53±0.53	1.47	50	0.0001
%BPSA	30.3±20.7	23.3	39	27.4±13.49	25.1	49	ns
[-2]proPSA/BPSA	0.050±0.03	0.045	39	0.069±0.040	0.063	49	0.02
Testosterone, ng/mL	3.92±1.21	3.72	34	3.83±1.38	3.70	47	ns

ns: not significant