Reading the result. The erectile function domain is the endpoint clinical trials report and the one worth tracking over time. A change of about 4 points on that domain is generally considered clinically meaningful.

Zero-scored answers ("no sexual activity", "did not attempt intercourse") lower a domain without indicating erectile dysfunction. If several answers were zero, the score reflects low activity as much as function.

This is a screening questionnaire, not a diagnosis. Discuss the result with a clinician, who can check testosterone, cardiovascular risk, medications, and other causes.