Table 3.

Frequency distribution of the entire patients with the respective cavernosal artery peak systolic velocities

Age (years)	n	Mean PSV (cm/s)	SD	Minimum PSV (cm/s)	Maximum PSV (cm/s)
<30	1	-	-	68.2	80.2
31-35	2	41.3	6.2	38.3	44.3
36-40	4	44.4	10.2	40.2	48.6
41-45	9	39.75	8.3	32.4	47.1
46-50	11	35.55	7.6	25.6	45.5
51-55	11	38.45	11.7	22.8	54.1
56-60	8	45.4	20.1	33.1	57.7
61-65	4	33.2	15.3	21.6	44.8
66-70	2	30.9	17.4	19.7	42.1
Total	52	42.57	11.28	16.77	51.6

PSV: Peak Systolic Velocity, SD: Standard Deviation