https://www.researchgate.net/figure/Women-femoral-neck-BMD-standard-values-DCS-900_tbl11_236104423
so, using this study as reference, i can construct z-scores of:
-0.87
-1.1
+ 0.78
for normal female reference values, which i'm going to use as a baseline because i'm estrogen dominant and it's the most applicable chemistry.
that suggests that i'm in a normal reference frame for women my age, relative to a reasonable concept of error.
but, i still want the calibration.