The purpose of this study is to understand the changes of TBS scores in Asian females by comparing 1990s and 2010s DXA images.
We have compared the DXA images of 3774 Korean females (age: 2079) to Japanese (age: 2079). While Korean DXA images were obtained in 2014 and 2015, Japanese data were obtained in 1996. Participants who have abnormal DXA images or lumbar disease were excluded. TBSiNsight® software (v. 2.1.1, Med-Imaps, Boedeaux, France) was used to calculate the TBS as well as to obtain BMD values from DXA images.
Korean showed higher values of height and weight than Japanese in all age groups. So, they showed similar BMI which are 22.2 kg/m2 for Koreans and 22.9 kg/m2 for Japanese. However, Korean showed higher TBS than Japanese in all age group. On average, TBS of Koreans are 0.281 higher than that of Japanese and the difference is bigger in the elderly.
There is a significant difference in the slope and breaking points of TBS values between Korean and Japanese. Japanese showed drastic reduction of TBS in 21.6 years but only 15.3 years in Korean data. Also, we have observed the higher TBS values in all age groups of Korean population which might be explained by the time-difference of data acquisition (1990s vs 2010s) as well as different nutrient.
14 - 17 May 2016
European Calcified Tissue Society