Evidence map›Paper›PMID 38610062›Full record

SynthesisAge and ageing2024

Understanding the association between pain and delirium in older hospital inpatients: systematic review and meta-analysis.

Nicola White, Juan Carlos Bazo-Alvarez, Michel Koopmans, Emily West, Elizabeth L Sampson

Registry-linked trialOpen access · hybridAbstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Age and ageing, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07643792 (Fascia Iliaca Block Using Liposomal Bupivacaine for Analgesia After Hip Surgery), which is not on this map. Cited by 23 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 4 pooled it
11.4field-weighted citation impact, top 1% 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.

NCT07643792 phase4not yet recruitingnot on this mapstarted 2026, after this paper: background citation

Fascia Iliaca Block Using Liposomal Bupivacaine for Analgesia After Hip Surgery: a Randomized Trial

TypeinterventionalSponsorPeking University First HospitalRan2026 to 2028Enrolled148ConditionsFascia Iliaca Block, Liposomal Bupivacaine, Postoperative Pain, Hip SurgeryArmsLiposomal bupivacaine (LB), Plain bupivacaine
3 · Its place in the literature

Who cites it

23 citing papers in PubMed, 4 syntheses or guidelines pooled it, 27 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Article
  6. Review
  7. Article
  8. Article
  9. Review
  10. Review
  11. Digital Pain Assessment: Patient and Family Perspectives.Nursing reports (Pavia, Italy) · 2026
    Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
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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 5 institutions in 3 countries.

Nicola WhiteMarie Curie Palliative Care Research Department, Division of Psychiatry, Faculty of Brain Sciences, University College London, London, UK.ORCID 0000-0002-7438-0072
Juan Carlos Bazo-AlvarezResearch Department of Primary Care and Population Health, University College London, London, UK.
Michel KoopmansRespiratory Medicine Department, Erasmus Medical Centre in Rotterdam, Rotterdam, The Netherlands.
Emily Weste-Referrals Service, NHS England, Redditch, UK.
Elizabeth L SampsonMarie Curie Palliative Care Research Department, Division of Psychiatry, Faculty of Brain Sciences, University College London, London, UK.
Erasmus University Rotterdam · NLFaculty (United Kingdom) · GBNHS EnglandQueen Mary University of London · GBUniversidad César Vallejo · PE

Funding

Department of Health and Social CareMarie Curie Core Funding MCCC-FCO-16-UNational Institute for Health and Care ResearchNational Institute for Health and Care Research ARC North ThamesNational Institute for Health ResearchResearch for Patient Benefit PB-PG-0317-20,019
6 · The paper itself

Abstract

objectiveDelirium and pain are common in older adults admitted to hospital. The relationship between these is unclear, but clinically important. We aimed to systematically review the association between pain (at rest, movement, pain severity) and delirium in this population.

methodsPubMed, EMBASE, CINAHL, PsycINFO, Cochrane and Web of Science were searched (January 1982-November 2022) for Medical Subject Heading terms and synonyms ('Pain', 'Analgesic', 'Delirium'). Study eligibility: (1) validated pain measure as exposure, (2) validated delirium tool as an outcome; participant eligibility: (1) medical or surgical (planned/unplanned) inpatients, (2) admission length ≥ 48 h and (3) median cohort age over 65 years. Study quality was assessed with the Newcastle Ottawa Scale. We collected/calculated odds ratios (ORs) for categorical data and standard mean differences (SMDs) for continuous data and conducted multi-level random-intercepts meta-regression models. This review was prospectively registered with PROSPERO [18/5/2020] (CRD42020181346).

resultsThirty studies were selected: 14 reported categorical data; 16 reported continuous data. Delirium prevalence ranged from 2.2 to 55%. In the multi-level analysis, pain at rest (OR 2.14; 95% confidence interval [CI] 1.39-3.30), movement (OR 1.30; 95% CI 0.66-2.56), pain categorised as 'severe' (OR 3.42; 95% CI 2.09-5.59) and increased pain severity when measured continuously (SMD 0.33; 95% CI 0.08-0.59) were associated with an increased delirium risk. There was substantial heterogeneity in both categorical (I2 = 0%-77%) and continuous analyses (I2 = 85%).

conclusionAn increase in pain was associated with a higher risk of developing delirium. Adequate pain management with appropriate analgesia may reduce incidence and severity of delirium.

Indexed as

DeliriumPainAgedAged, 80 and overHospitalizationHumansInpatientsMalePain MeasurementPrevalenceRisk Factorsanalgesiadeliriumgeneral hospitalsolder peoplepainsystematic review

Identifiers

PMID38610062
PMCPMC11014791
OpenAlexW4394761573

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.