Cited by 225Pharmaceutical Practices and Patient OutcomesBalance, Gait, and Falls PreventionHip and Femur Fractures

Benzodiazepines, Z-drugs and the risk of hip fracture: A systematic review and meta-analysis

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Donnelly, Karen, Bracchi, Robert, Hewitt, Jonathan, Routledge, Philip A., Carter, Ben·2017·PLOS ONE

Abstract

BACKGROUND: Hip fractures in the older person lead to an increased risk of mortality, poorer quality of life and increased morbidity. Benzodiazepine (BNZ) use is associated with increased hip fracture rate, consequently Z-drugs are fast becoming the physician's hypnotic prescription of choice yet data on their use is limited. We compared the risk of hip fracture associated with Z-drugs and BNZ medications, respectively, and examined if this risk varied with longer-term use. METHODS AND FINDINGS: We carried out a systematic review of the literature and meta-analysis. MEDLINE and SCOPUS were searched to identify studies involving BNZ or Z-drugs and the risk of hip fracture up to May 2015. Each included study was quality-assessed. A pooled relative risk of hip fracture was calculated using the generic inverse variance method, with a random effects model, with the length of hypnotic usage as a subgroup. Both BNZ, and Z-drug use respectively, were significantly associated with an increased risk of hip fracture (RR = 1.52, 95% CI 1.37-1.68; and RR = 1.90, 95% CI 1.68-2.13). Short-term use of BNZ and Z-drugs respectively, was also associated with the greatest risk of hip fracture (RR = 2.40, 95% CI 1.88-3.05 and RR = 2.39, 95% CI 1.74-3.29). CONCLUSIONS: There is strong evidence that both BNZ and Z-drugs are associated with an increased risk of hip fracture in the older person, and there is little difference between their respective risks. Patients newly prescribed these medicines are at the greatest risk of hip fracture. Clinicians and policy makers need to consider the increased risk of fallings and hip fracture particularly amongst new users of these medications.

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  • Longer-term benzodiazepine use is associated with physical dependence, tolerance, loss of efficacy, falls, fractures, and memory disturbance.

    “Longer-term use is associated with a number of physical and cognitive risks, including physical dependence, tolerance, loss of efficacy, falls, and fractures ( Donnelly et al., 2017) and memory disturbance (Lister, 1985).”

    From Pharmacological principles for safe benzodiazepine and Z-drug dose reduction (2026) · cites this paper as Donnelly et al., 2017

    The Introduction reports dependence and tolerance among chronic benzodiazepine users and links benzodiazepines to falls and fractures. The Discussion also describes dependence and falls as risks of long-term prescription, but our copy does not establish loss of efficacy. Memory disturbance is attributed to Lister (1985) in the citing sentence, not to Donnelly et al. (LLM, conf=0.88)

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Research works printed but not linked: 5

  1. [1]Boddaert J, Raux M, Khiami F, Riou B. Hip fractures: Epidemiology and risk factors. Annales françaises de médecine d’urgence. 2015; 5(2): 119– 25.
  2. [39]Joint Formularly Committee. Clonazepam 2017 [cited 07 Jan 2017]. In: British National Formularly [Internet]. London: BMJ Group and Pharmaceutical Press, [cited 07 Jan 2017]. https://www.medicinescomplete.com/mc/bnf/current/PHP3010-clonazepam.htm?q=clonazepam&t=search&ss=text&tot=32&p=1-_hit.
  3. [40]Joint Formulary Committee. Benzodiazepines 2017 [cited 07 Jan 2017]. In: British National Formularly [Internet]. London: BMJ Group and Pharmaceutical Press, [cited 07 Jan 2017]. https://www.medicinescomplete.com/mc/bnf/current/_882653840.htm?q=benzodiazepines&t=search&ss=text&tot=29&p=17-_hit.
  4. [42]Reeves B, Deeks J, Higgins J, Wells G. Chapter 13: Including Non-Randomized Studies 2008 In: Cochrane Handbook for Systematic Reviews of Interventions [Internet]. The Cochrane Collaboration www.handbook.cochrane.org.
  5. [63]National Institute for Health and Clinical Excellence. Falls in older people: assessing risk and prevention. London: NICE; 2013. 31869045

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Authors
Donnelly, K., Bracchi, R., Hewitt, J., Routledge, P. A., & Carter, B.
Affiliations
  • University Hospital Llandough (GB)
  • Cardiff University (GB)
  • University of Nottingham (GB)
Corresponding author
Carter, Ben
Venue
PLOS ONE
Published
2017-04-27
Volume
12
Issue
4
Pages
e0174730
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2600488841
Cited by
225
References
58
Citations by year
2026: 19 · 2025: 35 · 2024: 24 · 2023: 23 · 2022: 27 · 2021: 24 · 2020: 35 · 2019: 21 · 2018: 11 · 2017: 4 · 2016: 2
FWCI
2.22
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Research Portal (King's College London) (submittedVersion, cc-by)
Funders
  • South London and Maudsley NHS Foundation Trust
  • National Institute for Health and Care Research
  • King's College London
Topics
  • Health Sciences › Medicine › Geriatrics and Gerontology › Pharmaceutical Practices and Patient Outcomes
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Balance, Gait, and Falls Prevention
  • Health Sciences › Medicine › Surgery › Hip and Femur Fractures
Keywords
benzodiazepines, Z-drugs, hip fracture, older adults, hypnotics, fall risk, drug safety, duration of drug use, adverse drug reactions
MeSH terms
Zolpidem, Benzodiazepines, Hip Fractures, Humans, Pyridines

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