Evidence map›Paper›PMID 31638906›Full record

ArticleBMC geriatrics2019

Anticholinergic and benzodiazepine medication use and risk of incident dementia: a UK cohort study.

Carlota M Grossi, Kathryn Richardson, Chris Fox, Ian Maidment, Nicholas Steel, Yoon K Loke, Antony Arthur, Phyo Kyaw Myint, Noll Campbell, Malaz Boustani and 4 more

Open access · goldAbstract read
In one paragraph

Article in BMC geriatrics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 3 pooled it
4.3field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

27 citing papers in PubMed, 3 syntheses or guidelines pooled it, 58 citations in OpenAlex.

  1. Use of Drugs Affecting GABAMolecular neurobiology · 2025
    Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Medication Exposure and Risk of Dementia and Alzheimer's Disease.International journal of molecular sciences · 2024
    Review
  7. Review
  8. Article
  9. Observational
  10. Review
  11. Article
  12. Use of Benzodiazepines and Risk of Incident Dementia: A Retrospective Cohort Study.The journals of gerontology. Series A, Biological sciences and medical sciences · 2022
    Article
  13. Article
  14. Article
  15. Observational
  16. Emotional and Neuropsychiatric Disorders Associated with Alzheimer's Disease.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2022
    Review
  17. Treatment of bladder dysfunction with solifenacin: is there a risk of dementia or cognitive impairment?Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2022
    Review
  18. Article
  19. Review
  20. Pharmacists' Knowledge of Factors Associated with Dementia: The A-to-Z Dementia Knowledge List.International journal of environmental research and public health · 2021
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 7 institutions in 2 countries.

Carlota M GrossiSchool of Health Sciences, University of East Anglia, Norwich, NR4 7TJ, UK.
Kathryn RichardsonSchool of Health Sciences, University of East Anglia, Norwich, NR4 7TJ, UK. Kathryn.richardson@uea.ac.uk.ORCID 0000-0002-0741-8413
Chris FoxNorwich Medical School, University of East Anglia, Norwich, NR4 7TJ, UK.
Ian MaidmentSchool of Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK.
Nicholas SteelNorwich Medical School, University of East Anglia, Norwich, NR4 7TJ, UK.
Yoon K LokeNorwich Medical School, University of East Anglia, Norwich, NR4 7TJ, UK.
Antony ArthurSchool of Health Sciences, University of East Anglia, Norwich, NR4 7TJ, UK.
Phyo Kyaw MyintInstitute of Applied Health Sciences, University of Aberdeen, Aberdeen, AB25 2ZD, UK.
Noll CampbellDepartment of Pharmacy Practice, College of Pharmacy, Purdue University, West Lafayette, USA.
Malaz BoustaniIndiana University School of Medicine, Indianapolis, Indiana, USA.
Louise RobinsonInstitute of Health and Society/Institute for Ageing, Newcastle University, Newcastle, NE4 5PL, UK.
Carol BrayneCambridge Institute of Public Health, University of Cambridge, Cambridge, CB2 0SR, UK.
Fiona E MatthewsInstitute of Health and Society/Institute for Ageing, Newcastle University, Newcastle, NE4 5PL, UK.
George M SavvaSchool of Health Sciences, University of East Anglia, Norwich, NR4 7TJ, UK.
University of East Anglia · GBNewcastle Hospitals - Campus for Ageing and Vitality · GBAston University · GBIndiana University School of MedicinePurdue University West Lafayette · USUniversity of Aberdeen · GBUniversity of Cambridge · GB

Funding

Medical Research Council MC_U105292687
6 · The paper itself

Abstract

backgroundStudies suggest that anticholinergic medication or benzodiazepine use could increase dementia risk. We tested this hypothesis using data from a UK cohort study.

methodsWe used data from the baseline (Y0), 2-year (Y2) and 10-year (Y10) waves of the Medical Research Council Cognitive Function and Ageing Study. Participants without dementia at Y2 were included (n = 8216). Use of benzodiazepines (including nonbenzodiazepine Z-drugs), anticholinergics with score 3 (ACB3) and anticholinergics with score 1 or 2 (ACB12) according to the Anticholinergic Cognitive Burden scale were coded as ever use (use at Y0 or Y2), recurrent use (Y0 and Y2), new use (Y2, but not Y0) or discontinued use (Y0, but not Y2). The outcome was incident dementia by Y10. Incidence rate ratios (IRR) were estimated using Poisson regression adjusted for potential confounders. Pre-planned subgroup analyses were conducted by age, sex and Y2 Mini-Mental State Examination (MMSE) score.

resultsDementia incidence was 9.3% (N = 220 cases) between Y2 and Y10. The adjusted IRRs (95%CI) of developing dementia were 1.06 (0.72, 1.60), 1.28 (0.82, 2.00) and 0.89 (0.68, 1.17) for benzodiazepines, ACB3 and ACB12 ever-users compared with non-users. For recurrent users the respective IRRs were 1.30 (0.79, 2.14), 1.68 (1.00, 2.82) and 0.95 (0.71, 1.28). ACB3 ever-use was associated with dementia among those with Y2 MMSE> 25 (IRR = 2.28 [1.32-3.92]), but not if Y2 MMSE≤25 (IRR = 0.94 [0.51-1.73]).

conclusionsNeither benzodiazepines nor ACB12 medications were associated with dementia. Recurrent use of ACB3 anticholinergics was associated with dementia, particularly in those with good baseline cognitive function. The long-term prescribing of anticholinergics should be avoided in older people.

Indexed as

AgedAged, 80 and overBenzodiazepinesCholinergic AntagonistsCognitionCohort StudiesDementiaFemaleFollow-Up StudiesHumansIncidenceMaleMental Status and Dementia TestsUnited KingdomBenzodiazepinesCholinergic AntagonistsAlzheimer diseaseBenzodiazepinesCholinergic antagonistsCognitionCohort studyDementia

Identifiers

PMID31638906
PMCPMC6802337
OpenAlexW2974926904

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.