Evidence map›Paper›PMID 34403113›Full record

SynthesisEuropean geriatric medicine2022

Is there a link between the use of benzodiazepines and related drugs and dementia? A systematic review of reviews.

Patrícia Ferreira, Ana Rita Ferreira, Beatriz Barreto, Lia Fernandes

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European geriatric medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 2 pooled it
3.1field-weighted citation impact, top 8% 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

19 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Patrícia FerreiraFaculty of Medicine, University of Porto, Porto, Portugal. patriciasofiaribeiroferreira@gmail.com.ORCID 0000-0002-8745-5854
Ana Rita FerreiraFaculty of Medicine, University of Porto, Porto, Portugal.
Beatriz BarretoFaculty of Medicine, University of Porto, Porto, Portugal.
Lia FernandesFaculty of Medicine, University of Porto, Porto, Portugal.
Universidade do Porto · PT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeBenzodiazepines (BZDs) and related drugs (BZRDs) are commonly used to treat diverse psychiatric disorders due to their anxiolytic, hypnotic and sedative properties, despite their known associated side effects, including acute consequences on cognition. Recently, some studies have also suggested that long-term cognitive effects may coexist, as the increased risk of cognitive decline and dementia. This review aims to appraise and summarise published synthesis studies on the risk of dementia development due to BZDs/BZRDs use.

methodsA comprehensive systematic search was carried out in PubMed, Web of Science, Cochrane Library and Epistemonikos databases. Grey literature and hand search of the studies' reference lists were undertaken. Meta-analysis, systematic and non-systematic reviews were included. Neither language nor date restrictions were applied. Search results other than synthesis studies were excluded. The methodological quality of the included reviews was analysed with AMSTAR-2 and SANRA tools.

resultsOverall, 877 records were initially retrieved and 15 complied with the inclusion criteria. From these, five were systematic reviews with meta-analysis, two were systematic reviews and eight were non-systematic reviews. Most of the primary studies included in the analysed reviews found an association between BZDs/BZRDs use and subsequent dementia, with meta-analysis studies reporting an increased risk for users (ORs ranging from 1.38 to 1.78). However, the considerable clinical and methodological heterogeneity of the primary studies makes it difficult to establish a causal relationship.

conclusionAlthough hampered by the heterogeneity between the studies, the present findings suggest an association between BZDs/BZRDs use and increased risk of dementia in older adults.

Indexed as

Cognitive DysfunctionDementiaAgedBenzodiazepinesHumansHypnotics and SedativesLanguageMeta-Analysis as TopicReview Literature as TopicBenzodiazepinesHypnotics and SedativesAgedBenzodiazepinesDementiaHypnotics and sedativesSystematic review

Identifiers

PMID34403113
OpenAlexW3194348327

What OpenQuestion holds

Textmetadata
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.