DUPA over time, what happens?

With Dupa and Age related thinning, does every single follicle on the scalp miniaturize? And do the miniaturized follicles in these conditions eventually miniaturize to the point where they fall out and stop growing altogether like in AGA, resulting in a totally bald scalp (including the donor area)? Or do they miniaturize just to an extent but then stabilize and continue to grow at that level?

The best insights I have into this great question are from women who have it.  They are often older, and they usually do not bald from it.  I believe that these DUPA patients tend to be stable; however, since I interfere with the normal course of the disease with drugs like finasteride, I don’t frankly know what would happen if we just did nothing for these patients. I remember one woman who came to me with almost complete balding (donor area as well as the rest of the head), and she had DUPA’ however, since I never saw her when she was younger, I can’t comment on her disease progression.  She did report that the thinning was noticed after menopause. There is, of course, no comparable analogy for men.