Table 1.

Clinical characteristics of the three groups.

	Age ≤ 50 early-progressed BPH (n = 23)	Age-matched control (n = 17)	Elderly BPH (n = 23)	P-value
Age (yr)	47.13 ± 2.69	49.00 ± 4.19	76.57 ± 5.32b	<0.001
PV (ml)	41.54 ± 12.33a	22.85 ± 8.66	103.19 ± 55.96b	<0.001
BMI	25.55 ± 2.33c	25.02 ± 2.56	23.79 ± 2.69	0.0705
PSA	1.24 ± 1.08	1.32 ± 1.63	8.04 ± 3.85b	<0.001
SBP/DBP, FBG, TG, TCHO, HDL-C, LDL-C				>0.05

^aThere is a statistical difference between the early-progressed BPH group and the age-matched control group.

^bThere is a statistical difference between the three groups.

^cThere is a statistical difference between the early-onset BPH group and the elderly BPH group.