Diagnosis, Treatment
A Comparison Between Dual-Energy X-ray Absorptiometry and Bioelectrical Impedance for the Body Composition in Patients With Type 2 Diabetes
2019 Volume 62 Issue 11 Pages 707-713
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2019 Volume 62 Issue 11 Pages 707-713
While dual-energy X-ray absorptiometry (DXA) is useful for assessing the body composition, it is not widely employed because of its high cost, high radiation exposure, and the bulky equipment required. We investigated whether or not a bioelectrical impedance analysis (BIA) was a reliable method for diagnosing sarcopenia in patients with type 2 diabetes. In 188 hospitalized patients with type 2 diabetes, we compared the fat mass, lean body mass, and skeletal muscle index (SMI) assessed by DXA and a BIA. We also calculated the BIA cut-off values for the SMI corresponding to those determined by the Asian Working Group for Sarcopenia (AWGS) using DXA. A strong positive correlation between the 2 methods was observed for whole-body fat mass and lean body mass (ρ=0.94 and ρ=0.93, respectively). The cut-off value of the SMI for sarcopenia was 7.4 kg/m2 in men and 5.7 kg/m2 in women, being higher for men and the same for women than those values recommended by the AWGS (7.0 kg/m2 and 5.7 kg/m2, respectively). In conclusion, a BIA is also useful for diagnosing sarcopenia in patients with type 2 diabetes, although devices will need to be standardized in the future.
