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. 2016 Oct 17;11(10):e0164303.
doi: 10.1371/journal.pone.0164303. eCollection 2016.

Sarcopenia as an Independent Risk Factor for Decreased BMD in COPD Patients: Korean National Health and Nutrition Examination Surveys IV and V (2008-2011)

Dong-Won Lee  1 , Eun-Young Choi  2
Affiliations

Sarcopenia as an Independent Risk Factor for Decreased BMD in COPD Patients: Korean National Health and Nutrition Examination Surveys IV and V (2008-2011)

Dong-Won Lee et al. PLoS One. .

Abstract

Background: A decrease in bone mineral density (BMD) is a systemic consequence of chronic obstructive pulmonary disease (COPD). Past reports have rarely examined any correlation between sarcopenia and BMD. We investigated the relationship cross-sectionally between the presence of sarcopenia and BMD reduction in COPD patients.

Methods: COPD patients aged 50 or older with qualifying spirometry and dual-energy X-ray absorptiometry data were from participants in the Korean National Health and Nutrition Examination Surveys IV and V (2008-2011).

Results: There were 286 (33.3%) subjects in the sarcopenia group and 572 (66.7%) in the non-sarcopenia group. The sarcopenia group had lower T-scores than the non-sarcopenia group (femur: -0.73±0.88 vs. -0.18±0.97, p < 0.001; femur neck: -1.44±0.98 vs. -0.99±1.06, p < 0.001; lumbar: -1.38±1.36 vs. -0.84±1.38, p < 0.001). The prevalences of osteopenia and osteoporosis were 60.8% and 22.0%, respectively, in the sarcopenia group and 45.6% and 13.3% in the non-sarcopenia group (both p < 0.001). After adjusting for multiple variables, the presence of sarcopenia associated with increased the risk of osteopenia, osteoporosis, and a low BMD (OR = 3.227, 95% CI = 2.125-4.899, p < 0.001, OR = 6.952, 95% CI = 3.418-14.139, p < 0.001, and OR = 3.495, 95% CI = 2.315-5.278, p < 0.001, respectively). In a subgroup analysis, similar OR changes were confirmed in the high-body-weight group (n = 493) (OR = 2.248, 95% CI = 1.084-4.665, p = 0.030, OR = 4.621, 95% CI = 1.167-18.291, p = 0.029, and OR = 2.376, 95% CI = 1.158-4.877, p = 0.018, respectively).

Conclusions: The presence of sarcopenia was associated with increased the risk for decreased BMD in COPD.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig 1
Fig 1. Flow chart.
Fig 2
Fig 2. Prevalence of bone disease according to the sarcopenia group.
See this image and copyright information in PMC

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