alephnull; Yep, T and z are statistical functions. The T score is how many standard deviations away your BMD score is from that of a healthy, 30 year old adult (T=0, the mean). The z score would be the value of a normal function. T score is usually used for this BMD evaluation. And sure, you can have a positive value. It's just higher than the baseline BMD. That's probably a Good Thing!
If one is just starting on ADT, it sure seems like a good idea to get a baseline value.
One other thing, there is a FRAX ®Fracture Risk Assessment Tool
that can forecast the likelihood of a fracture given a few factors, notably the T-score or actual reported density from a DEXA scan. If you use the actual value, it asks for the DEXA scanner's manufacturer. If your FRAX predictions are above some value, then you'd consider some of the bone strengthening medications. The side effects from them can be significant. This site
gives some guidance on the results from that calculator.
Good to hear folks having good BMD numbers. It's not clear why mine took such a hit, though I know my dad had some issues with bone density too (unrelated to PCa). Maybe I have a genetic pr
opensity for low BMD? Yay me...