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. 2012 Mar;23(3):921-7.
doi: 10.1007/s00198-011-1652-8. Epub 2011 May 11.

Estimation of the lifetime risk of hip fracture for women and men in Canada

R B Hopkins  1 , E Pullenayegum, R Goeree, J D Adachi, A Papaioannou, W D Leslie, J E Tarride, L Thabane
Affiliations

Estimation of the lifetime risk of hip fracture for women and men in Canada

R B Hopkins et al. Osteoporos Int. 2012 Mar.

Abstract

In Canada in 2008, based on current rates of fracture and mortality, a woman or man at age 50 years will have a projected lifetime risk of fracture of 12.1% and 4.6%, respectively, and 8.9% and 6.7% after incorporating declining rates of hip fracture and increases in longevity.

Introduction: In 1989, the lifetime risk of hip fractures in Canada was 14.0% (women) and 5.2% (men). Since then, there have been changes in rates of hip fracture and increased longevity. We update these estimates to 2008 adjusted for these trends, and in addition, we estimated the lifetime risk of first hip fracture.

Methods: We used national administrative data from fiscal year April 1, 2007 to March 31, 2008 to identify all hip fractures in Canada. We estimated the crude lifetime risk of hip fracture for age 50 years to end of life using life tables. We projected lifetime risk incorporating national trends in hip fracture and increased longevity from Poisson regressions. Finally, we removed the percentage of second hip fractures to estimate the lifetime risk of first hip fracture.

Results: From April 1, 2007 to March 31, 2008, there were 21,687 hip fractures, 15,742 (72.6%) in women and 5,945 (27.4%) in men. For women and men, the crude lifetime risk was 12.1% (95%CI, 12.1, 12.2%) and 4.6% (95%CI, 4.5, 4.7%), respectively. When trends in mortality and hip fractures were both incorporated, the lifetime risk of hip fracture were 8.9% (95%CI, 2.3, 15.4%) and 6.7% (95%CI, 1.2, 12.2%). The lifetime risks for first hip fracture were 7.3% (95%CI, 0.8, 13.9%) and 6.2% (95%CI, 0.7, 11.7%).

Conclusions: The lifetime risk of hip fracture has fallen from 1989 to 2008 for women and men. Adjustments for trends in mortality and rates of hip fracture with removing second fractures produced non-significant differences in estimates.

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Conflict of interest statement

None.

Figures

Fig. 1
Fig. 1
Trends in rates of mortality and hip fracture, predicted to year 2020, for ages 85+years. For women, the rate of decline for hip fractures is higher than the rate of decline for mortality while, for men, the rate of decline for hip fractures is less than the rate of decline for mortality
See this image and copyright information in PMC

References

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