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A Pilot Study of Bone Mineral Density in Men with Chronic Obstructive Pulmonary Disease  

Bae, Yun Oh (Department of Internal Medicine, Eulji University School of Medicine)
Han, Minsoo (Department of Internal Medicine, Eulji University School of Medicine)
Lee, Seong-Kyu (Department of Internal Medicine, Eulji University School of Medicine)
Kim, Jeong Nyum (Department of Internal Medicine, Eulji University School of Medicine)
Kim, Jeong Sik (Department of Internal Medicine, Eulji University School of Medicine)
Kim, Jinho (Department of Internal Medicine, Eulji University School of Medicine)
Cho, Yongseon (Department of Internal Medicine, Eulji University School of Medicine)
Lee, Yang Deok (Department of Internal Medicine, Eulji University School of Medicine)
Publication Information
Tuberculosis and Respiratory Diseases / v.54, no.4, 2003 , pp. 395-402 More about this Journal
Abstract
Background : Patients with chronic obstructive pulmonary disease (COPD) are at increased risk for osteoporosis, which has implications for mobility and even mortality. The goal of this pilot study was to evaluate bone mineral density (BMD) and risk factors for osteoporosis in a limited number of men with COPD. Methods : We checked BMD, $FEV_1$(% of predicted) and investigated risk factors for osteoporosis in 44 male patients with COPD who visited our hospital from January to August 2002. Results : Mean(${\pm}$) age was $69{\pm}9$ yrs, body mass index(BMI) $21{\pm}3kg/m^2$, $FEV_1$ $50{\pm}18%$ of predicted, lumbar spine T-score $-3.0{\pm}1.2$, lumbar spine Z-score $-2.0{\pm}1.2$, and lumbar spine BMD $0.76{\pm}0.13g/cm^2$. Osteoporosis(T-score below -2.5) was present in 27 patients(61.4%) and osteopenia(T-score between -1 and -2.5) in 17(38.6%). None of the patients had normal BMD. There was no relationship between BMD and $FEV_1$(% of predicted). There were significant differences in smoking, alcohol consumption, exercise, cumulative steroid dose, BMI and BMD among the three groups according to $FEV_1$(% of predicted) (group1 : ${\geq}65%$, group2 : 50-64%, group3 : ${\leq}49%$), except age. However, there were no significant differences in these variables between the osteopenia and osteoporosis groups, except BMI. Linear Regression(Stepwise) analysis showed that lumbar BMD was correlated with BMI & exercise. Conclusion : BMD is significantly reduced in men with COPD. There was no relationship between BMD and pulmonary function.
Keywords
Osteoporosis; Chronic obstructive pulmonary disease; Bone mineral density;
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