Bone mineral density and fractures in older men with chronic obstructive pulmonary disease or asthma

T. T. Dam, S. Harrison, H. A. Fink, J. Ramsdell, E. Barrett-Connor

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Abstract

In 5,541 community dwelling men, chronic obstructive pulmonary disease, or asthma was associated with lower bone mineral density (BMD) at the spine and total hip and an increased risk of vertebral and nonvertebral fractures independent of age, body mass index, and smoking. Men prescribed with corticosteroids had the lowest BMD. Introduction: It is unclear whether chronic obstructive pulmonary disease (COPD) is independently associated with BMD and fractures. Methods: In 5,541 men from the Osteoporotic Fractures in Men Study, history of COPD or asthma, current treatment with corticosteroids, BMD, bone loss after 4.5 years and fractures were ascertained. Results: Seven hundred fourteen (13%) men reported COPD or asthma, of which 103 were prescribed an oral steroid and 177 an inhaled steroid. Independent of confounders, men prescribed corticosteroids for COPD or asthma had the lowest BMD and a 2-fold increased risk of vertebral osteoporosis compared to men with no history of COPD or asthma (OR 2.13, 95% CI (confidence interval) 1.15-3.93 oral steroids; OR 2.05, 95% CI 1.27-3.31 inhaled steroids). During follow-up, BMD increased at the spine, but there was no difference in bone loss at the hip. However, men with COPD or asthma had a 2.6- and 1.4-fold increased risk of vertebral and nonvertebral fractures, respectively. Conclusion: Chronic obstructive pulmonary disease or asthma was associated with lower BMD at the spine and hip and increased risk of vertebral and nonvertebral fractures independent of age, clinic site, BMI, and smoking. A history of COPD or asthma may be a useful clinical risk factor to identify patients with osteoporosis.

Original languageEnglish (US)
Pages (from-to)1341-1349
Number of pages9
JournalOsteoporosis International
Volume21
Issue number8
DOIs
StatePublished - Aug 2010

Bibliographical note

Funding Information:
The Osteoporotic Fractures in Men (MROS) Study is supported by National Institutes of Health funding. The following institutes provided support: the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), the National Institute on Aging (NIA), the National Cancer for Research Resources (NCRR), and the NIH Roadmap for Medical Research under the following grant numbers—U01 AR45580, U01 AR45614, U01 AR45632, U01 AR45647, U01 AR45654, U01 AR45583, U01 AG18197, UO1-AG027810, and UL1 RR024140. The funding institutes had no role in the collection, analysis or interpretation of the data, or in the decision to submit the paper for publication.

Funding Information:
T.-T. Dam, S. Harrison, H. Fink, and J. Ramsdell had no financial support while E. Barrett-Connor had consulting contracts and research support from Eli Lilly and Company and Merck and Company.

Keywords

  • Bone loss
  • Bone mineral density
  • Elderly
  • Fractures
  • Pulmonary disease

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