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Article Dans Une Revue JBMR Plus Année : 2021

Refracture And Mortality Following Hospitalization For Severe Osteoporotic Fractures: The Fractos Study

Résumé

Severe osteoporotic fractures (hip, proximal humerus, pelvic, vertebral and multiple rib fractures) carry an increased risk of mortality. This retrospective cohort study in the French national healthcare database aimed to estimate refracture and mortality rates after severe osteoporotic fractures at different sites, and to identify mortality‐related variables. 356,895 patients hospitalised for severe osteoporotic fracture between 2009 and 2014 inclusive were analysed. The cohort was followed for 2‐8 years up to the study end or until the patient died. Data were extracted on subsequent hospitalisations, refracture events, treatments, comorbidities of interest and survival. Time to refracture and survival were described using Kaplan‐Meier analysis by site of fracture and overall. Mortality risk factors were identified using a Cox model. Hip fractures accounted for 60.4% of the sample (N=215,672). In the 12 months following fracture, 58,220 patients (16.7%) received a specific osteoporosis treatment, of whom 21,228 were previously treatment‐naïve. The 12‐month refracture rate was 6.3% [95%CI: 6.2%–6.3%], ranging from 4.0% [3.7%–4.3%] for multiple rib fractures to 7.8% [7.5%–8.1%] for pelvic fractures. 12‐month all‐cause mortality was 12.8% [12.7%–12.9%], ranging from 5.0% [4.7%–5.2%] for vertebral fractures to 16.6% [16.4%–16.7%] for hip fractures. Osteoporosis‐related mortality risk factors included fracture site, previous osteoporotic fracture (hazard ratio: 1.21 [1.18–1.23]), hip refracture (1.74 [1.71–1.77]) and no prior osteoporosis treatment (1.24 [1.22–1.26]). Comorbid cancer (3.15 [3.09–3.21]) and liver disease (2.54 [2.40–2.68]) were also strongly associated with mortality. In conclusion, severe osteoporotic fractures, including certain non‐hip non‐vertebral fractures, carry a high burden in terms of mortality and refracture risk. However, most patients received no anti‐osteoporotic treatment. The findings emphasise the importance of better management of patients with severe fractures, and of developing effective strategies to reduce fracture risk in patients with osteoporosis.
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Dates et versions

hal-03223667 , version 1 (11-05-2021)

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Christian Roux, Thierry Thomas, Julien Paccou, Geoffray Bizouard, Anne Crochard, et al.. Refracture And Mortality Following Hospitalization For Severe Osteoporotic Fractures: The Fractos Study. JBMR Plus, 2021, ⟨10.1002/jbm4.10507⟩. ⟨hal-03223667⟩
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