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Arthritis Rheum 48:1041–1046PubMedCrossRef 21. Birrell F, Croft P, Cooper C, Hosie G, Macfarlane GJ, Silman A (2000) Radiographic change is common in new presenters in primary care with hip pain. PCR Hip Study Group. click here Rheumatol (Oxf) 39:772–775CrossRef 22. Naganathan V, Zochling J, March L, Sambrook PN (2002) Peak bone mass is increased in the hip indaughters of women with osteoarthritis. Bone 30:287–292PubMedCrossRef 23. Stewart A, Black AJ (2000) Bone mineral density in osteoarthritis. Curr Opin Rheumatol 12:464–467PubMedCrossRef 24. Meta M, Lu Y, Keyak JH, Lang T (2006) Young-elderly

differences in bone density, geometry and strength indices depend on proximal femur sub-region: a cross sectional study in Caucasian-American women. Bone 39:152–158PubMedCrossRef AZD8931 supplier 25. Lyles KW, Colon-Emeric AZD2171 CS, Magaziner JS, Adachi JD, Pieper CF, Mautalen C et al (2007) Zoledronic acid and clinical fractures and mortality after hip fracture. N Engl J Med 357:1799–1809PubMedCrossRef”
“Introduction Osteoporosis is a devastating disease resulting in substantial health care costs and increased mortality. In Europe, osteoporotic

fractures affect one in two women and one in five men aged 50 years and older [1]. In Europe, total health care costs associated with these fractures have been estimated to be around €30 billion [1]. In 2000, an estimated 5.8 million disability-adjusted life years were caused by osteoporotic fractures worldwide [2]. Among patients who have sustained

a hip fracture, one in five will die within the first year after the fracture, whilst one in three of those surviving needs assistance with walking [3, 4]. Because of this huge burden, assessment of an individual’s risk of fracture is important so that a prophylactic intervention can be effectively targeted. As of July 1, 2010, the FRAX® tool has been calibrated to the total Dutch population (http://​www.​sheffield.​ac.​uk/​FRAX). FRAX uses easily obtainable clinical risk factors, with or without femoral neck bone mineral density (BMD), to estimate 10-year fracture probability [5]. It has been constructed using primary data from nine population-based cohorts around the world. The gradients of fracture risk have been validated externally in 11 independent cohorts with a similar geographic distribution [6]. FRAX is a platform DOCK10 technology using Poisson models that integrate risk variables, fracture risk, and death risk over a 10-year interval. Using the incidence rates of hip and osteoporotic fractures and mortality rates, FRAX can be calibrated to create a country-specific model [7]. With the introduction of the online Dutch FRAX tool, it is important to understand the origin of the data for further validation if needed. Furthermore, the possibilities of the Dutch FRAX tool and its strengths/limitations compared to other Dutch models need to be discussed.

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