Abstract
Summary
Mortality risk declined over time. Patients with fragility hip fracture experienced an approximate ninefold excess mortality, peaking shortly after fracture, in comparison with that of the general population. Continuous efforts in lowering the occurrence of hip fracture have the potential to improve the survival of the elderly population in China.
Purpose
Hip fractures in older adults often lead to an elevated risk of death. However, few studies investigated mortality risk following hip fracture in mainland China. This retrospective cohort study aimed to evaluate the crude mortality and excess mortality after fragility hip fractures in Lishui residents aged 50 years and older.
Methods
Patients having a fragility hip fracture between October 2013 and August 2019 were identified from the Lishui District Inpatient Data Collection and followed up until August 2020. Death information was ascertained from the linked death registry records. We calculated the follow-up mortality rate and corresponding 95% confidence intervals (CIs) as well as the standard mortality ratios (SMRs) in comparison with the mortality rates of Lishui residents.
Results
During the study period, a total of 808 patients (63.4% females) with an average age of 75 years were admitted for fragility hip fractures. The 1st, 2nd, and 3rd year follow-up mortality rates were 16.51, 6.06, and 5.03 per 100 person-year, respectively. The SMRs were 8.46 (6.94, 9.97), 5.74 (4.86, 6.63), and 4.63 (3.98, 5.27) for the 1st, 2nd, and 3rd year following fragility hip fracture.
Conclusion
Although mortality risk declined over time, patients with fragility hip fracture experienced an approximate ninefold excess mortality, peaking shortly after fracture, in comparison with that of the general population. Continuous efforts in lowering the occurrence of hip fracture have the potential to improve the survival of the elderly population in China.
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Data availability
The datasets generated during and/or analyzed during the current study are not publicly available due to restrictions to the availability of these data.
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Acknowledgements
We thank the project team from the Lishui Renmin Hospital, Lishui Health Commission of Lishui, in particular for study coordination and data collection, data processing, and data management. Hua Y contributed to the data analysis, results interpretation, and manuscript preparation and revision. Du W, Fan L, Zhou J, Moayyeri A, and Libanati C conceived the study and contributed to the results interpretation, critical review, and manuscript revision. All authors contributed to the critical review, results interpretation, and manuscript revision, and approved the final manuscript as submitted.
Funding
This study was supported by the Fundamental Research Funds for the Central Universities (No.3225002002A1), Department of Education (No.1125000172), the National Natural Science Foundation of China (Grant Number: 71704192, 82173899), and UCB Biopharma.
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Zhou J, Moayyeri A, and Libanati C are current employees of UCB Biopharma and may hold/have access to stock options. Hua Y, Li Y, Fan L, Huang F, Wu Z, Xue H, Yang B, Chen P, Rui Y, Tian Y, and Du W declare that they have no conflict of interest.
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Hua, Y., Li, Y., Zhou, J. et al. Mortality following fragility hip fracture in China: a record linkage study. Arch Osteoporos 18, 105 (2023). https://doi.org/10.1007/s11657-023-01304-z
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DOI: https://doi.org/10.1007/s11657-023-01304-z