hi sue,
last year i had a bds because a chiropractor diagnosed me with osteopenia in the lumbar and SI areas. the bds results showed that my bone density is 80 percent of what it should be at my age of 33, and they seemed to think that was within the normal range. i'm not sure what percentage it would have to be before they diagnose osteopenia.
it would seem to me, though, that osteopenia at a young age would clue a doctor in that something was going in, as AS apparently can/does cause osteopenia at first. but i don't know??? sorry i can't be of much help. i'm just trying to gather the info here, myself. :P
