Muscle mass measures and incident osteoporosis in a large cohort of postmenopausal women

Papageorgiou, Maria; Sathyapalan, Thozhukat; Schutte, Rudolph

Abstract

© 2018 The Authors. Journal of Cachexia, Sarcopenia and Muscle published by John Wiley & Sons Ltd on behalf of the Society on Sarcopenia, Cachexia and Wasting Disorders Background: Despite several muscle mass measures being used in the current definitions of sarcopenia, their usefulness is uncertain because of limited data on their association with health outcomes. The aim of the study was to compare the performance of different muscle mass measures for predicting incident osteoporosis in postmenopausal women. Methods: This study included data from 149 166 participants (aged 60.3 ± 5.5 years) as part of the UK Biobank cohort. Body composition was assessed using bioelectrical impedance. The muscle mass measures included were total body skeletal muscle mass (SMM) and appendicular SMM (aSMM) divided by height squared (ht2), derived residuals, SMM, SMM adjusted for body mass (SMM/bm × 100), and aSMM normalized for body mass index (aSMM/BMI). Diagnoses of the events were confirmed by primary care physicians and coded according to the World Health Organization's International Classification of Diseases 10th Revision (ICD-10: M80-M82). Results: Over a median follow-up of 6.75 (5th to 95th percentile interval, 1.53 to 8.37) years, 394 newly diagnosed cases of osteoporosis occurred, with 40 (10.2%) cases being associated with a pathological fracture. SMM/ht2, aSMM/ht2 residual, and SMM were lower in postmenopausal women with osteoporosis compared with women without (all P smaller than 0.0001), while the incidence of osteoporosis increased with increasing SMM/bm × 100 (P trend =0.001), but not for aSMM/BMI (P = 0.45). After minimally adjusting for age and after full adjustment, SMM/ht2, aSMM/ht2, and SMM were the only measure that consistently predicted osteoporosis in the total group of postmenopausal women [hazard ratio (HR) 0.65–0.67, all P ≤ 0.0001], in lean women (HR 0.62–0.68; all P ≤ 0.001), and women with increased adiposity (HR 0.64–0.68; all P ≤ 0.01). In fully adjusted models, the changes in the R2 statistic were 13.4%, 11.6%, and 15.3% for the SMM/ht2 (aSMM/ht2), residual, and SMM, but only 4.9% and 1.3% for SMM/bm × 100 and aSMM/BMI.

Citation

Papageorgiou, M., Sathyapalan, T., & Schutte, R. (2019). Muscle mass measures and incident osteoporosis in a large cohort of postmenopausal women. Journal of Cachexia, Sarcopenia and Muscle, 10(1), 131-139. https://doi.org/10.1002/jcsm.12359

• Journal Article Type: Article
• Acceptance Date: Oct 8, 2018
• Online Publication Date: Nov 5, 2018
• Publication Date: 2019-02
• Deposit Date: Nov 8, 2018
• Publicly Available Date: Nov 9, 2018
• Journal: Journal of Cachexia, Sarcopenia and Muscle
• Print ISSN: 2190-5991
• Publisher: Wiley Open Access
• Peer Reviewed: Peer Reviewed
• Volume: 10
• Issue: 1
• Pages: 131-139
• DOI: https://doi.org/10.1002/jcsm.12359
• Keywords: Physiology (medical); Orthopedics and Sports Medicine
• Public URL: https://hull-repository.worktribe.com/output/1147566
• Publisher URL: https://onlinelibrary.wiley.com/doi/full/10.1002/jcsm.12359
• Contract Date: Nov 8, 2018