Was not sure if this was previous identified - but an item in the NY Times today linked to this:
http://annfammed.org/content/13/4/331.full
CONCLUSIONS Our results underscore the importance of erectile dysfunction as a marker of undiagnosed diabetes. Erectile dysfunction should be a trigger to initiate diabetes screening, particularly among middle-aged men.
http://annfammed.org/content/13/4/331.full
CONCLUSIONS Our results underscore the importance of erectile dysfunction as a marker of undiagnosed diabetes. Erectile dysfunction should be a trigger to initiate diabetes screening, particularly among middle-aged men.