Trends in hip fracture incidence and mortality in Chinese population from Hong Kong 2001-09

Background: there is a suggestion that while the age-adjusted incidence of hip fracture in the West may be declining, the incidence may be rising in Asia. Objective: this study examines the incidence and post-fracture mortality from 2001 to 2009 among the population aged 65 years and over. Methods: hip fracture incidence rates and case-fatality rates among Hong Kong population aged 65 and over for the period 2001-09 were obtained from the Hong Kong Hospital Authority (HA) database. Rates were adjusted for age. Poisson and logistic regressions were used to examine trends in incidence and post-fracture mortality, respectively. Results: the age-adjusted incidence rate of hip fracture among the population aged 65 and over in Hong Kong (per 100,000 population) decreased from 381.6 for men and 853.3 for women in 2001 to 341.7 and 703.1, respectively, in 2009. There were no significant changes in post-fracture mortality trends. Conclusions: there is a downward trend in age-specific hip fracture incidence rates since 2001 among Hong Kong Chinese, but no change in post-fracture mortality trends.