Alternative mechanisms for prostate-specific antigen elevation: A prospective analysis of 222 transurethral resections of prostate patients

Table 1 Characteristics of the 222 consecutive patients undergoing transurethral resection of the prostate between May 2008 and June 2010

	n	Mean	SD	Min	Max
PSA (ng/mL)	218	4.7	5.4	0.2	32.5
Age (yr)	222	69.1	8.6	45	90.0
UF (mL/s)	204	10.7	6.5	1	47.2
IPSS	222	15.7	6.9	0	32.0
PRV (mL)	208	83.8	130.3	0	890
P/F (cm H2O)	154	96.3	34.4	10	220
Operation time (min)	222	31.1	11.9	10	110
TURP weight (g)	222	39.4	27.3	3	189

SD: Standard deviation; PSA: Prostate specific antigen; UF: Uroflow; IPSS: International prostate symptoms score; PRV: Post residual volume; P/F: Pressure flowmetry; TURP: Transurethral resection of the prostate; Min: Minimum; Max: Maximum.