Table 1.

Single-question Self-report of Erectile Dysfunction, Massachusetts Male Aging Study

Erectile dysfunction (sometimes called impotence) means being unable to get and keep an erection that is rigid enough for satisfactory sexual activity.
Not impotent	Always able to get and keep an erection good enough for sexual intercourse
Minimally impotent	Usually able to get and keep an erection good enough for sexual intercourse
Moderately impotent	Sometimes able to get and keep an erection good enough for sexual intercourse
Completely impotent	Never able to get and keep an erection good enough for sexual intercourse