Evidence map›Paper›PMID 30375757›Full record

ArticleJournal of clinical neurology (Seoul, Korea)2019

Risk of Dementia in Long-Term Benzodiazepine Users: Evidence from a Meta-Analysis of Observational Studies.

Qian He, Xiaohua Chen, Tang Wu, Liyuan Li, Xiaofan Fei

Open access · diamondAbstract read
In one paragraph

Article in Journal of clinical neurology (Seoul, Korea), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 5 pooled it
8.1field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 5 syntheses or guidelines pooled it, 90 citations in OpenAlex.

  1. Pooled it
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  3. Canadian journal of psychiatry. Revue canadienne de psychiatrie · 2020
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Article
  7. Multimorbidity, Polypharmacy, and Neighborhood Disadvantage as Determinants of Cognitive Performance in the ARCHES Cohort.Journal of applied gerontology : the official journal of the Southern Gerontological Society · 2026
    Article
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  13. Impact of cannabis use on health outcomes and prescription benzodiazepine use.medRxiv : the preprint server for health sciences · 2025
    Article
  14. Review
  15. Article
  16. Medication Exposure and Risk of Dementia and Alzheimer's Disease.International journal of molecular sciences · 2024
    Review
  17. Article
  18. Article
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Qian HeDepartment of Out-Patient, West China Hospital, Sichuan Uniwersity, Chengdu, China.
Xiaohua ChenDepartment of Nursing, West China Hospital, Sichuan Uniwersity, Chengdu, China.
Tang WuDepartment of Out-Patient, West China Hospital, Sichuan Uniwersity, Chengdu, China.
Liyuan LiDepartment of Out-Patient, West China Hospital, Sichuan Uniwersity, Chengdu, China.
Xiaofan FeiDepartment of Pharmacy, West China Hospital, Sichuan Uniwersity, Chengdu, China. FFleissnerabbse@yahoo.com.
Sichuan University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeThere is conflicting evidence in the literature on the association between benzodiazepines (BDZs) and the risk of dementia. This meta-analysis aimed to determine the relationship between the long-term usage of BDZs and the risk of dementia.

methodsThe PubMed and Embase databases were systematically searched for relevant publications up to September 2017. The literature search focused on observational studies that analyzed the relationship between the long-term use of BDZs and the risk of dementia. Pooled rate ratios (RRs) with 95% confidence interval (CI) were assessed using a random-effects model. The robustness of the results was checked by performing subgroup and sensitivity analyses.

resultsTen studies were included: six case-control and four cohort studies. The pooled RR for developing dementia was 1.51 (95% CI=1.17-1.95,

conclusionsThis meta-analysis that pooled ten studies has shown that BDZ significantly increases the risk of dementia in the elderly population. The risk is higher in patients taking BDZ with a longer half-life (>20 hours) and for a longer duration (>3 years).

Indexed as

benzodiazepinesdementiameta-analysis

Identifiers

PMID30375757
PMCPMC6325366
OpenAlexW2904873292

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.