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Published in: Archives of Osteoporosis 1/2021

01-12-2021 | Original Article

Urban versus rural differences of hip fractures among the elderly in Kyoto, Japan: a 10-year study

Authors: Naoki Okubo, Motoyuki Horii, Kazuya Ikoma, Maki Asada, Tsuyoshi Goto, Nagato Kuriyama, Kenji Takahashi

Published in: Archives of Osteoporosis | Issue 1/2021

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Abstract

Summary

Secular changes in the incidence rate of hip fractures were estimated to vary by fracture type, i.e., femoral neck or trochanteric fractures, age, and sex, in urban or rural areas in Kyoto Prefecture, Japan from 2008 to 2017.

Purpose

Our survey in Kyoto Prefecture from 2008 to 2017 showed that the incidence rate of femoral neck fractures is generally increasing. We investigated the differences between urban and rural areas in the changes of the incidence rate over time of femoral neck and trochanteric fractures during the same period.

Methods

Patients aged 65 years and above who sustained hip fractures between 2008 and 2017 and were treated at one of the participating 11 hospitals were included. The ratio of sick beds for acute-term care at the investigated hospitals to total number of beds in the urban area was 16.5% (1863/11,158) and 30.6% (1863/5623) in the rural area. The change in incidence rate was estimated utilizing the population according to the national census conducted in 2010 and 2015.

Results

There were 3559 and 6474 hip fractures in the urban and rural areas, respectively. Femoral neck fractures were 1936 (54.4%) and 2813 (43.5%) in each area. The increase of the population-adjusted numbers was marked by neck fractures in males, in both areas. In women, there was a significant increase in femoral neck fractures in the urban area in those aged 85 years and over. For trochanteric fractures, a significant increase was only found in women aged 65 to 74 years in the rural area.

Conclusion

A regional difference in the secular changes in incidence rate of hip fractures was found in women, not in men, mostly because neck fractures in women increased in the over 85 group in the urban area.
Literature
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go back to reference Hawley S, Leal J, Delmestri A, Prieto-Alhambra D, Arden NK, Cooper C, Javaid MK, Judge A (2016) Anti-osteoporosis medication prescriptions and incidence of subsequent fracture among primary hip fracture patients in England and Wales: an interrupted time-series analysis. J Bone Miner Res 31(11):2008–2015. https://doi.org/10.1002/jbmr.2882CrossRefPubMed Hawley S, Leal J, Delmestri A, Prieto-Alhambra D, Arden NK, Cooper C, Javaid MK, Judge A (2016) Anti-osteoporosis medication prescriptions and incidence of subsequent fracture among primary hip fracture patients in England and Wales: an interrupted time-series analysis. J Bone Miner Res 31(11):2008–2015. https://​doi.​org/​10.​1002/​jbmr.​2882CrossRefPubMed
Metadata
Title
Urban versus rural differences of hip fractures among the elderly in Kyoto, Japan: a 10-year study
Authors
Naoki Okubo
Motoyuki Horii
Kazuya Ikoma
Maki Asada
Tsuyoshi Goto
Nagato Kuriyama
Kenji Takahashi
Publication date
01-12-2021
Publisher
Springer London
Published in
Archives of Osteoporosis / Issue 1/2021
Print ISSN: 1862-3522
Electronic ISSN: 1862-3514
DOI
https://doi.org/10.1007/s11657-021-01029-x

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