Abstract:
INTRODUCTION:Patients on maintenance hemodialysis (MHD) are highly predisposed to low bone mineral density (BMD). This study aims to assess the value of quantitative ultrasound (QUS), bioelectrical impedance analysis (BIA), and their combination in detecting high-risk patients for low BMD in MHD. METHODS:Patients' BMD of the total hip, femoral neck, and lumbar spine were measured using dual-energy X-ray absorptiometry (DXA). Bone mineral content (BMC) was assessed using BIA. Calcaneal BMD was measured using QUS. Patients with a T-score of ≤-2.5 were recorded as 'low BMD.' RESULTS:Overall, 93 subjects (62.37% female; mean age, 60.8 ± 16.2 years) were included in this cross-sectional study; approximately 36.56% met the 'low BMD' criteria. QUS-T score predicted low BMD with an area under the curve (AUC) value of 0.738, sensitivity of 70.59%, and specificity of 76.27%. The AUC for low BMD diagnosis using the BMC index (BMCI) measured through BIA was 0.679 (sensitivity, 91.18%; specificity, 38.98%). On the other hand, the combination of QUS-T score and BMCI yielded a higher AUC value of 0.762 with an improved specificity of 88.14%. Compared with the QUS and BIA alone, the net reclassification improvement (NRI) of the combination model increased by 47.16% (p = 0.022) and 78.36% (p < 0.0001), respectively. Integrated discrimination improvement (IDI) increased by 5.25% (p = 0.043) and 9.99% (p = 0.003), respectively. QUS-T score and BMCI were related to BMD independently assessed by DXA. CONCLUSION:The combination of QUS and BIA is effective in screening for low BMD among MHD patients.
journal_name
Ren Failjournal_title
Renal failureauthors
Xiang T,Zhou L,Fu P,Yan XP,Zeng XQdoi
10.1080/0886022X.2021.1959347keywords:
["Low bone mineral density","bioelectrical impedance analysis","hemodialysis","osteoporosis","quantitative ultrasound"]subject
Has Abstractpub_date
2021-12-01 00:00:00pages
1198-1204issue
1eissn
0886-022Xissn
1525-6049journal_volume
43pub_type
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