Table 4.

Correlation between NIH-CPSI and IIEF-5 in men with CPPS.

	IIEF-5 score
	Total score		Q1		Q2		Q3		Q4		Q5
	Adjusted r	P	Adjusted r	P	Adjusted r	P	Adjusted r	P	Adjusted r	P	Adjusted r	P
NIH-CPSI scores
Total score	−0.65	<0.001	−0.6	<0.001	−0.62	<0.001	−0.61	<0.001	−0.65	<0.001	−0.7	<0.001
Pain symptoms	−0.7	<0.001	−0.65	<0.001	−0.67	<0.001	−0.69	<0.001	−0.68	<0.001	−0.67	<0.001
Urinary symptoms	−0.68	<0.001	−0.62	<0.001	−0.64	<0.001	−0.68	<0.001	−0.66	<0.001	−0.65	<0.001
Quality of life impact	−0.64	<0.001	−0.69	<0.001	−0.62	<0.001	−0.64	<0.001	−0.62	<0.001	−0.74	<0.001

NIH-CPSI = National Institute of Health-Chronic Prostatitis Symptoms Index; CPPS = chronic pelvic pain syndrome; IIEF-5 = International Index of Erectile Dysfunction 5.