Hi, @tsc. I just now came across a YouTube video "How to use TBS (Trabecular Bone Score) in combination with BMD in Clinical DXA practice" by searching on YouTube for tbs bone health mccormick. There's a chart that *might* be saying something along the lines of your "30% of the patients considered osteoperodic per the BMD didn't have osteoporosis per the TBS" (or something like that, I don't have your quote in front of me), but I'm having a super hard time interpreting the chart (and the speaker's verbiage). The chart is attached. Is this what you're referring to? I can't tell what it's saying! I need to stop trying to swim upstream . . . I'm in over my head with all this technical info likely geared toward doctors.