Androgel? Testosterone replacement therapy

They say diabetic men over the age of 45 have low testosterone levels much more often than non-diabetic men.  I'm not sure whether they're only referring to Type 2 diabetics.  The website, which has been doing a lot of advertising on TV, that talks about this condition is

Has anyone on this list been tested for low T?  (It's just a blood test.)  Has anyone been diagnosed with Low T and/or used Androgel or any other Testosterone Replacemen Therapy?