Table 5.

Natural History of Benign Prostatic Hyperplasia^*

Baseline	Therapy Method at Year 4, %
Symptoms (n)	TURP	Drug Therapy	No Therapy
Mild (84)	10	26.7	63.3
Moderate (326)	24.1	31.0	44.9
Severe (89)	39.4	27.3	33.3

^*500 men with a clinical diagnosis of benign prostatic hyperplasia who were candidates for elective transurethral resection of the prostate (TURP).

Data from Barry MJ et al. J Urol. 1997;157:10–15.⁷