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COPD increases risk of bone fracture by 4.7 X (low vitamin D) – Dec 2019

COPD as an independent risk factor for osteoporosis and fractures.

Osteoporos Int. 2019 Dec 6. doi: 10.1007/s00198-019-05235-9.
Adas-Okuma MG1, Maeda SS2, Gazzotti MR3, Roco CM3, Pradella CO3, Nascimento OA3, Porto EF3, Vieira JGH2, Jardim JR3, Lazaretti-Castro M2.

Fractures are common in individuals with COPD and occur at higher bone mass values than expected.
COPD appears to be an important risk factor for bone fragility.

Patients with chronic obstructive pulmonary disease (COPD) have an increased risk of osteoporosis and fractures, but screening and prophylactic measures to prevent both disorders are often neglected in this population. This case-control study assessed the prevalence of osteopenia, osteoporosis, and fractures in patients with COPD, and identified potential risk factors for fractures in this population.

Overall, 91 patients with COPD (COPD group; COPDG) and 81 age- and sex-matched controls (control group; CG) were assessed with bone mineral density (BMD), thoracic/lumbar spine radiographs, and serum PTH and 25-hydroxyvitamin D (25[OH]D) levels. The occurrence of prior fractures was retrieved from clinical history.

The prevalence of total fractures in the COPDG was 57.1% (odds of fracture 4.7 times greater compared with the CG), and the femoral neck T-score emerged as the best predictor of fractures. Compared with the CG, the COPDG had lower spine and femoral BMD (p ≤ 0.01) and 25(OH)D levels (p = 0.01) and 2.6 times greater odds of osteoporosis. Among men, vertebral fractures were more prevalent in the COPDG versus CG (25.9% vs. 6.5%, respectively, p = 0.01). The odds of fracture increased with femoral neck T-scores ≤ - 2.7 in the CG and ≤ - 0.6 in the COPDG.

These results add robust evidence to an increased odds of osteoporosis and fractures in COPD. Fractures in the COPDG occurred at higher BMD values than expected, suggesting that COPD may be an independent marker of fracture risk, reinforcing a need for regular osteoporosis screening with BMD measurement and prophylaxis of fractures in patients with this disorder.

Created by admin. Last Modification: Sunday December 8, 2019 13:28:50 GMT-0000 by admin. (Version 4)