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Table 6. Comparisons of variables according to the vascular status of patients with erectile dysfunction (ED)

		Type of ED^a
	Control (n = 50)^a	Arterial Insufficiency (n = 26)	Veno-occlusive Dysfunction (n = 37)	Mixed-Type Impotence (n = 29)	ANOVA P
Prolidase activity, U/L	45.7 ± 4.9^b	56.3 ± 5.7^c	53.2 ± 6.6^d	55.9 ± 5.2	<.001
—SH, mmol/L	0.29 ± 0.03^e	0.27 ± 0.04	0.28 ± 0.04	0.27 ± 0.03	<.001
LOOH, µmol/L tBLOOH	4.8 ± 0.8^f	5.12 ± 0.43	4.89 ± 0.69	4.96 ± 0.73	<.001

Abbreviations: ANOVA, analysis of variance; LOOH, lipid hydroperoxide; —SH, free sulfhydryl groups; tBLOOH, tert butyl hydroperoxide.
a Measurements are given as mean ± SD.
b P < .001 versus arterial insufficiency, veno-occlusive dysfunction, mixed-type impotence.
c P < .001 versus veno-occlusive dysfunction, P < .001 versus mixed-type impotence.
d P < .001 versus mixed-type impotence.
e P < .001 versus arterial insufficiency, veno-occlusive dysfunction, mixed-type impotence.
f P < .001 versus arterial insufficiency, versus mixed-type impotence.