Table 2. Serum levels of cortisol (hydrocortisone) (given in µg/dL) in peripheral and cavernosal blood samples taken from patients with erectile dysfunction (ED) during different conditions of sexual arousal, exemplified by the penile conditions flaccidity, tumescence and detumescence.

Penile condition	Blood source	Blood withdrawals commenced	Cortisol (µg/dL serum)
Flaccidity	CV	29	9.2±3.4
	CC	29	9.3±3.8
Tumescence	CV	33	9.9±5.7
	CC	33	10.3±5.6
Detumescence	CV	22	10.1±5.5
	CC	22	8.9±3.9

All data are given as mean ± standard deviation (SD). CC, corpus cavernosum; CV, cubital vein.