Calculated Tumor Volume Is an Independent Predictor of Biochemical Recurrence in Patients Who Underwent Retropubic Radical Prostatectomy

Table 2

Postoperative clinicopathological parameters.

	All patients (n = 255)	Biochem. recur. (+) (n = 77)	Biochem. recur. (−) (n = 178)	P value
Surgical Gleason score
≦6	122	30	92
7	89	29	60
8–10	23	13	10
Unknown	21	5	16	0.009*
Pathological stage
T0	5	1	4
T2	170	40	130
T3a	68	25	43
T3b	10	9	1
T4	2	2	0	0.001*
EPE
Positive	74	30	44
Negative	181	47	134	0.017*
Surgical margin
Positive	64	29	35
Negative	164	35	129
Unknown	33	13	20	<0.001*
SVI
Positive	12	11	1
Negative	243	66	177	<0.001*

Biochem. recur.: biochemical recurrence, EPE: extraprostatic extension, SVI: seminal vesicle involvement.
*Chi-square test and ^§Mann Whitney U test.