Table 2.

Patient characteristics: characteristics of the 431 patients selected in the study.

PATIENT CHARACTERISTICS	MEAN/MEDIAN (RANGE)	SD/IQR
AGE	61.5 (49–84) years	8.3 (SD)
PROSTATE VOLUME	58 (25–108) mL	19–201 (IQR)
PSA	12.0 (4.4–90) ng/mL	4.4–87.2 (IQR)
FREE PSA	19%	8.2–52.4 (IQR)
PSA DENSITY	0.18 ng/mL2	0.09–0.39 (IQR)

IQR: interquartile range, SD: standard deviation, cm: centimeter, ng: nanogram, and mL: milliliter. PSA: Prostate-specific antigen.