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.
Similar content being viewed by others
References
Cummings SR, Melton LJ (2002) Epidemiology and outcomes of osteoporotic fractures. Lancet 359(9319):1761–1767. https://doi.org/10.1016/s0140-6736(02)08657-9
Haentjens P, Magaziner J, Colón-Emeric CS, Vanderschueren D, Milisen K, Velkeniers B, Boonen S (2010) Meta-analysis: excess mortality after hip fracture among older women and men. Ann Intern Med 152(6):380–390. https://doi.org/10.7326/0003-4819-152-6-201003160-00008
Osnes EK, Lofthus CM, Meyer HE, Falch JA, Nordsletten L, Cappelen I, Kristiansen IS (2004) Consequences of hip fracture on activities of daily life and residential needs. Osteoporos Int 15(7):567–574. https://doi.org/10.1007/s00198-003-1583-0
Rohde G, Haugeberg G, Mengshoel AM, Moum T, Wahl AK (2010) Two-year changes in quality of life in elderly patients with low-energy hip fractures. A case-control study. BMC Musculoskelet Disord 11:226. https://doi.org/10.1186/1471-2474-11-226
Veronese N, Maggi S (2018) Epidemiology and social costs of hip fracture. Injury 49(8):1458–1460. https://doi.org/10.1016/j.injury.2018.04.015
Orimo H, Yaegashi Y, Hosoi T, Fukushima Y, Onoda T, Hashimoto T, Sakata K (2016) Hip fracture incidence in Japan: estimates of new patients in 2012 and 25-year trends. Osteoporos Int 27(5):1777–1784. https://doi.org/10.1007/s00198-015-3464-8
Hagino H, Endo N, Harada A, Iwamoto J, Mashiba T, Mori S, Ohtori S, Sakai A, Takada J, Yamamoto T (2017) Survey of hip fractures in Japan: recent trends in prevalence and treatment. J Orthop Sci 22(5):909–914. https://doi.org/10.1016/j.jos.2017.06.003
Asada M, Horii M, Ikoma K, Goto T, Okubo N, Kuriyama N, Takahashi K (2021) Hip fractures among the elderly in Kyoto, Japan: a 10-year study. Arch Osteoporos 16(1):30. https://doi.org/10.1007/s11657-021-00888-8
Horii M, Fujiwara H, Ikeda T, Ueshima K, Ikoma K, Shirai T, Terauchi R, Nagae M, Kuriyama N, Kubo T (2013) Urban versus rural differences in the occurrence of hip fractures in Japan’s Kyoto prefecture during 2008–2010: a comparison of femoral neck and trochanteric fractures. BMC Musculoskelet Disord 14:304. https://doi.org/10.1186/1471-2474-14-304
Nationwide survey of hip fractures in Japan (2004). J Orthop Sci 9 (1):1–5. https://doi.org/10.1007/s00776-003-0741-8
Michaëlsson K, Weiderpass E, Farahmand BY, Baron JA, Persson PG, Zidén L, Zetterberg C, Ljunghall S (1999) Differences in risk factor patterns between cervical and trochanteric hip fractures. Swedish Hip Fracture Study Group. Osteoporos Int 10(6):487–494. https://doi.org/10.1007/s001980050259
Pulkkinen P, Glüer CC, Jämsä T (2011) Investigation of differences between hip fracture types: a worthy strategy for improved risk assessment and fracture prevention. Bone 49(4):600–604. https://doi.org/10.1016/j.bone.2011.07.022
Horii M, Fujiwara H, Sakai R, Sawada K, Mikami Y, Toyama S, Ozaki E, Kuriyama N, Kurokawa M, Kubo T (2017) New quantitative ultrasound techniques for bone analysis at the distal radius in hip fracture cases: differences between femoral neck and trochanteric fractures. Clin Cases Miner Bone Metab 14(1):23–27. https://doi.org/10.11138/ccmbm/2017.14.1.023
Määttä M, Terho E, Jokinen H, Pulkkinen P, Korpelainen J, Heikkinen J, Keinänen-Kiukaanniemi S, Jämsä T, Korpelainen R (2012) Lifestyle factors and site-specific risk of hip fracture in community dwelling older women–a 13-year prospective population-based cohort study. BMC Musculoskelet Disord 13:173. https://doi.org/10.1186/1471-2474-13-173
Abrahamsen B, Laursen HVB, Skjødt MK, Jensen MH, Vestergaard P (2020) Age at hip fracture and life expectancy in Denmark - secular trends over two decades. Bone 130:115083. https://doi.org/10.1016/j.bone.2019.115083
Crisp A, Dixon T, Jones G, Cumming RG, Laslett LL, Bhatia K, Webster A, Ebeling PR (2012) Declining incidence of osteoporotic hip fracture in Australia. Arch Osteoporos 7:179–185. https://doi.org/10.1007/s11657-012-0095-y
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.2882
Acknowledgements
All authors would like to thank the following for their invaluable help and contribution to the study by registering their cases at each institution:
North Medical Center Kyoto Prefectural University of Medicine
Maizuru Red Cross Hospital
Fukuchiyama City Hospital
Ayabe City Hospital
Kyoto Chubu Medical Center
Japanese Red Cross Kyoto Daiichi Hospital
Japanese Red Cross Kyoto Daini Hospital
Rakuwakai Marutamachi Hospital
Kyoto Kuramaguchi Medical Center
Kyoto Kizugawa Hospital
Tanabe Central Hospital
Author information
Authors and Affiliations
Contributions
MH, KI, MA, NK, and KT contributed to the conception and design of the study. NO, MH, MA, and TG participated in data collection. MH, NO, and NK performed the statistical analysis. NO, MH, KI, and MA drafted the manuscript. All authors read and approved the final manuscript. MA did the English editing.
Corresponding author
Ethics declarations
Ethics approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Ethical approval was obtained from the ethics committee of the Kyoto Prefectural University of Medicine.
Consent to participate
For this type of study, formal consent is not required.
Conflicts of interest
None.
Additional information
Publisher’s note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Okubo, N., Horii, M., Ikoma, K. et al. Urban versus rural differences of hip fractures among the elderly in Kyoto, Japan: a 10-year study. Arch Osteoporos 16, 160 (2021). https://doi.org/10.1007/s11657-021-01029-x
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11657-021-01029-x