Evidence map›Paper›PMID 21721599›Full record

ArticleDrugs & aging2011

Variation over time in the association between polypharmacy and mortality in the older population.

Kathryn Richardson, Alexandrine Ananou, Louise Lafortune, Carol Brayne, Fiona E Matthews

Open access · greenAbstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Drugs & aging, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 3 pooled it
3.0field-weighted citation impact, top 9% 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

48 citing papers in PubMed, 3 syntheses or guidelines pooled it, 97 citations in OpenAlex.

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  8. Prevalence of polypharmacy use and association with mortality: a cohort study of elderly people in Southern Brazil, 2014-2017.Epidemiologia e servicos de saude : revista do Sistema Unico de Saude do Brasil · 2025
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  16. Dose-Response Relationships Between Polypharmacy and All-Cause and Cause-Specific Mortality Among Older People.The journals of gerontology. Series A, Biological sciences and medical sciences · 2022
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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 3 institutions in 2 countries.

Kathryn RichardsonInstitute of Public Health, University of Cambridge, Cambridge, UK. richarkj@tcd.ie
Alexandrine Ananou
Louise Lafortune
Carol Brayne
Fiona E Matthews
University of Cambridge · GBInstitute of Public Health · INMedical Research Council · GB

Funding

Medical Research Council G9901400Medical Research Council MC_U105292687Medical Research Council U.1052.00.0013
6 · The paper itself

Abstract

backgroundIn the older population, multimorbidity is common and 'best practice' may invite the prescription of multiple medications.

objectiveTo examine the association between polypharmacy, defined as the concurrent use of five or more prescription or nonprescription medications, and mortality in 12 423 participants aged ≥65 years representative of the older population of England and Wales.

methodsData on self-reported medication use, disability and health conditions were collected at baseline in 1991-3. The cohort was followed for up to 18 years with full mortality notification. Cox proportional hazards regression adjusted for age, baseline institutionalization, smoking, disability and health conditions was used to investigate polypharmacy and mortality, stratified by sex. Various methods for modelling the time-varying effect of polypharmacy are presented.

resultsA strong independent association between polypharmacy and mortality existed in the short-term (first 2 years) for both men and women. This association remained, although attenuated, in the medium-long term (2-18 years of follow-up) for women, but became non-significant in the longer term for men.

conclusionsIt remains unclear whether polypharmacy is a marker for poor health or is an independent risk factor for mortality. However, polypharmacy strongly predicts adverse outcomes, and multiple medication use should therefore be carefully monitored in the older population.

Indexed as

MortalityPolypharmacyAgedAged, 80 and overDrug PrescriptionsEnglandFemaleFollow-Up StudiesHumansKaplan-Meier EstimateMaleProportional Hazards ModelsSurveys and QuestionnairesTime FactorsWales

Identifiers

PMID21721599
OpenAlexW2077842365

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.