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Normal Bone Microstructure and Density But Worse Physical Function in Older Women Treated with Selective Serotonin Reuptake Inhibitors, a Cross-Sectional Population-Based Study.

Artikel i vetenskaplig tidskrift
Författare Berit Larsson
Dan Mellström
Lisa Johansson
Anna G Nilsson
Mattias Lorentzon
Daniel Sundh
Publicerad i Calcified tissue international
Volym 103
Nummer/häfte 3
Sidor 278-288
ISSN 1432-0827
Publiceringsår 2018
Publicerad vid Institutionen för medicin, avdelningen för invärtesmedicin och klinisk nutrition
Sidor 278-288
Språk en
Länkar dx.doi.org/10.1007/s00223-018-0427-...
www.ncbi.nlm.nih.gov/entrez/query.f...
Ämneskategorier Klinisk medicin

Sammanfattning

Depression in the elderly is today often treated with selective serotonin reuptake inhibitors (SSRIs) because of their favorable adverse effect profile. However, treatment with SSRIs is associated with increased risk of fractures. Whether this increased risk depends on reduced bone strength or increased fall risk due to reduced physical function is not certain. The aim was therefore to investigate if treatment with SSRIs is associated with impaired bone microstructure, bone density, or physical function in older women. From an ongoing population-based study, 1057 women (77.7 ± 1.5 years) were included. Validated questionnaires were used to assess information regarding medical history, medications, smoking, mental and physical health, and physical activity. Physical function was measured using clinically used tests: timed up and go, walking speed, grip strength, chair stand test, and one leg standing. Bone mineral density (BMD) was measured at the hip and spine with dual-energy X-ray absorptiometry (Hologic Discovery A). Bone geometry and microstructure were measured at the ultradistal and distal (14%) site of radius and tibia using high-resolution peripheral quantitative computed tomography (HR-pQCT; XtremeCT). Treatment with SSRIs was associated with higher BMD at the femoral neck, total hip, and lumbar spine, whereas no associations were found for any HR-pQCT-derived measurements. The use of SSRIs was associated with lower grip strength, walking speed, and fewer chair stand rises. These associations were valid also after adjustments for known risk factors for falls. Treatment with SSRIs was, independently of covariates, associated with worse physical function without any signs of inferior bone geometry and microstructure.

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