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. 2016 Aug;50(4):437-42.
doi: 10.1016/j.aott.2016.06.008. Epub 2016 Jul 26.

Incidence of second hip fractures and associated mortality in Taiwan: A nationwide population-based study of 95,484 patients during 2006-2010

Sheng-Hsun Lee  1 , I-Jung Chen  2 , Ya-Hsin Li  3 , Chih-Yun Fan Chiang  4 , Chih-Hsiang Chang  5 , Pang-Hsin Hsieh  6
Affiliations

Incidence of second hip fractures and associated mortality in Taiwan: A nationwide population-based study of 95,484 patients during 2006-2010

Sheng-Hsun Lee et al. Acta Orthop Traumatol Turc. 2016 Aug.

Abstract

Objectives: The aim of the study is was to determine the incidence and mortality of second hip fracture using a nationwide database.

Patients and methods: A nationwide epidemiological study was conducted using the Taiwan National Health Insurance Research Database from 2001 to 2011. Patients older than 50 years with hip fractures from 2006 to 2011 were included in the study. A total of 95,484 hip fractures were identified, with subsequent second hip fracture occurred in 4102 of them.

Results: The incidence rate ratio of second hip fracture showed a 7.13 fold of risk of further hip fracture in 3 months, 5.21 fold in one year, and remained more than 2 fold in the end of 6th year when compared with the general population. The 6-year cumulative incidence of a second hip fracture was higher in female (8.0%) than in male (6.2%). A significantly higher 1-year mortality rate was seen after a second hip fracture (18.8%) compared to the first hip fracture (14.1%) (p < 0.05). Men had higher 1- and 5-year mortality rates after second hip fractures (12.1% and 41.2%, respectively) than women (17.4% and 47.3%, respectively).

Conclusions: Patients with hip fractures would have a 2-7 fold of risk of a second fracture within 6 years. Women were more prone to a second hip fracture than men but men had a higher mortality rate.

Keywords: Geriatrics; Mortality; Osteoporosis; Second hip fracture.

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Figures

Fig. 1
Fig. 1
Incidence rate ratio of subsequent hip fracture in people with first hip fracture compared to general population.
Fig. 2
Fig. 2
Cumulative incidence of second hip fracture.
Fig. 3
Fig. 3
Cumulative survival after second hip fracture. a, female. b, male.
See this image and copyright information in PMC

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