Dexa accuracy for thin women

I think there is something to this. But I don’t think its the dexa that underestimates the density, I think its the fact that the “scores” are based on the average bone density of a 30 year old woman. They chose 30 years old because that’s when we hit peak bone mass.
If, like me you are small boned, then I was probably below the average from the beginning.
Dexa isn’t the greatest predictor of fracture. Unfortunately it was created as a means to allow doctors to treat with medications, which were already available before the machine was designed.

I also wonder about this.

Not just for thin women but those with finer bone stucture.

https://pmc.ncbi.nlm.nih.gov/articles/PMC7954087/ my computer doesn't feel like highlighting this link. If you google volumetric vs areal dxa, you'll fine lots of links. Smaller bones register a lower density when the xray passes through. larger bones have more bone, not necessarily having bone of greater mineralization.

I think you could probably Google it

@aspirecreative
I also read articles that bone density dexza scans were not reliable. As I researched this topic before beginning treatment for osteopenia, I found this article to be helpful. Their is a mesurement that can be calculated from a CT scan. It provides a measurement called a Hounsfield Unit measurement. It is performed by a radiologist and your orthopedic or neurusurgeon would need to request it. It is used to support or negate the dexa results. Sort of like another source to determine if you are on the high or low range of bone density. My osteopenia range was -1.2. My HU measurement was 150 and 170, Anything over 200 is considered very good, low 100's us considered very low. Here is a link to the artcile below. It may be worth discussing this with your doctor in order to validate the findings of your dexa.
https://pmc.ncbi.nlm.nih.gov/articles/PMC6047377/

I am currently listening to an audiobook by Doug Lucas called the osteoporosis breakthrough. Quite interesting and only short.

Hopefully the picture will insert.

Look at how much darker the bones appear where they are thicker and how much lighter where thinner. If DEXA does not take bone structure into account, fine boned people may appear to be more osteoporotic than they are.
https://www.bing.com/th?id=OADD2.7902829715603_15JMBUJANSX6V1RZIH&pid=21.2&c=17&roil=0&roit=0.2389&roir=1&roib=0.762&w=300&h=157&dynsize=1&qlt=90&dpr=2.00