Incidence and excess mortality of hip fracture in young adults: a nationwide population-based cohort study.

Background: This study assessed the incidence and excess mortality of hip fractures among inpatients aged 20-40 years in a nationwide population database in Taiwan.

Methods: Subjects were selected from Taiwan's National Health Insurance Research Database for the period 2001-2008 and were followed up until the end of 2010. A total of 4,523 subjects were admitted for the first time with primary diagnosis of hip fracture and treated with operation.