I started treatment for osteoporosis with an endocrinologist in 2011. At that time and with that doctor, my test results were not available in a digital app. He gave me paper copies of the results of my bone density scans but not the results for the blood tests. I should have asked for the blood test results, but I didn't. So, I don't know if I had a CTX done before August 2018 when I switched doctors. My 2018 CTX level was 521 (Normal range: 104-1008 pg/mL). Once I started treatment in 2011 (first with HRT and then Evista), my T scores improved. I haven't noticed any pattern between my CTX levels (because I don't know the earlier results) and my T scores, but there probably is one. The higher CTX levels (886 and 630) occurred when I wasn't exercising very much. That situation changed and the next result was 514. my most recent CTX level was 208 with a different normal range: 34 to 1037 PG/mL. This test was done after 5 Evenity injections.