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Gac Sanit. 2011 Nov-Dec;25(6):507-12. doi: 10.1016/j.gaceta.2011.06.007. Epub 2011 Sep 28.

[Risk factors for fragility fractures in a cohort of Spanish women].

[Article in Spanish]

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Agència d'Informació, Avaluació i Qualitat en Salut (AIAQS), Barcelona, España.



Fragility fractures are an important public health issue. The aim of this study was to analyze the association of the main osteoporotic risk factors related to fragility fracture in a cohort of women with an indication of bone densitometry (BD).


A retrospective cohort was followed-up until a fragile fracture occurred, in a population of women aged 40 to 90 years with a first visit for BD between January 1992 and February 2008. We calculated the incidence rate of fracture per 1000 women-years of follow-up, and the hazard ratio (HR) of fragile fracture using a Cox regression model.


A total of 49,735 women were studied. The average age of participants was 57.8 years (SD: 8.5). Of these, 3631 women (7.1%) reported a new fragility fracture in post-baseline visits. Risk factors with higher adjusted HR were age ≥ 75 years compared with age < 55 years (HR: 3.8; 95% CI: 3.3-4.4) and having a BC result evaluated as osteoporosis compared to normal (HR: 2.0; 95% CI: 1.8-2.2). A personal history of humerus, hip or vertebral fractures had an adjusted HR of 1.2 (95% CI: 1.1-1.3).


The main risk factors for fragility fracture were advanced age, BD result and a personal history of fracture, although 74% of fractures were detected with a bone mineral density classified as normal or osteopenia. Other relevant factors were rheumatoid arthritis or having received prolonged corticosteroid therapy.

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