Objective: Osteoporosis is a complication of rheumatoid arthritis. We examined the risk factors for bone loss in rheumatoid arthritis patients receiving biological disease-modifying anti-rheumatic drugs. Lumbar spine and femoral neck bone mineral density was measured at two time points in 153 patients with rheumatoid arthritis managed with biological disease-modifying anti-rheumatic drugs. We examined patients' variables to identify risk factors for least significant reduction of bone mineral density.

Results: Least significant reduction of lumbar spine bone mineral density (≤ - 2.4%) was seen in 13.1% of patients. Least significant reduction of femoral neck bone mineral density (≤ - 1.9%) was seen in 34.0% of patients. Multiple logistic regression analysis showed that a risk factor for least significant reduction of the lumbar spine was high-dose methylprednisolone use. Multiple regression analysis showed that a risk factor for least significant reduction of the femoral neck was short disease duration. Our findings showed that a risk factor for femoral neck bone mineral density reduction was a short disease duration. These findings suggest that rheumatoid arthritis patients receiving treatment with biological disease-modifying anti-rheumatic drugs may benefit from earlier osteoporosis treatments to prevent femoral neck bone loss.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5740597PMC
http://dx.doi.org/10.1186/s13104-017-3086-7DOI Listing

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