Evidence map›Paper›PMID 28039852›Full record

Trial reportJournal of the American Geriatrics Society2017

Pathway from Delirium to Death: Potential In-Hospital Mediators of Excess Mortality.

Kumar Dharmarajan, Sunil Swami, Ray Y Gou, Richard N Jones, Sharon K Inouye

Registry-linked trialAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Journal of the American Geriatrics Society, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04997200 (Effect of Sleep Deprivation on Breathlessness and Exercise Capacity in COPD), which is not on this map. Cited by 35 papers, 8 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 8 pooled it
3.6field-weighted citation impact, top 7% 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.

NCT04997200 nacompletednot on this mapstarted 2021, after this paper: background citation

Effect of Sleep Deprivation on Breathlessness and Exercise Capacity in COPD: a Randomized Crossover Trial

TypeinterventionalSponsorSkane University HospitalRan2021 to 2024Enrolled20ConditionsCOPDArmsOne night's sleeplessness
3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 8 syntheses or guidelines pooled it, 74 citations in OpenAlex.

  1. Guideline
  2. Five-decade prevalence of delirium in pneumonia, risk factors and associated mortality: a systematic review and meta-analysis.European respiratory review : an official journal of the European Respiratory Society · 2025
    Pooled it
  3. Risk factors and risk stratification approaches for delirium screening: A Geriatric Emergency Department Guidelines 2.0 systematic review.Academic emergency medicine : official journal of the Society for Academic Emergency Medicine · 2024
    Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Pooled it
  9. Nutrition Support in Patients With Delirium: A Retrospective Case Series.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2026
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Delirium in a surgical context from a nursing perspective: A hybrid concept analysis.International journal of nursing studies advances · 2022
    Article
  18. Review
  19. Article
  20. Article
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 4 institutions in 2 countries.

Kumar DharmarajanDepartment of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut.
Sunil SwamiDepartment of Research and Development, Philips Healthcare, Baltimore, Maryland.
Ray Y GouAging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, Massachusetts.
Richard N JonesDepartment of Psychiatry and Human Behavior, Department of Neurology, Warren Alpert Medical School, Brown University, Providence, Rhode Island.
Sharon K InouyeAging Brain Center, Institute for Aging Research, Hebrew SeniorLife, Boston, Massachusetts.
Hebrew SeniorLife · USBrown University · USPhilips (Finland) · FIYale New Haven Hospital · US

Funding

Yale Study Support Suite (YES3): Dashboard and Web Portal Software Supporting Research Workflow through integrated, customizable REDCap External ModulesP30AG021342 · NIA · YALE UNIVERSITY · PI Denise Esserman · 2002 to 2026
$37.9M
The Role of Inflammation in the Pathophysiology of Delirium and its Associated Long-Term Cognitive DeclineP01AG031720 · NIA · HEBREW REHABILITATION CENTER FOR AGED · PI INOUYE, SHARON K. · 2010 to 2022
$26.7M
Geriatric Conditions and Readmission after Acute Myocardial InfarctionK23AG048331 · NIA · YALE UNIVERSITY · PI DHARMARAJAN, KUMAR · 2014 to 2017
$692k
K07 Leadership GrantK07AG041835 · NIA · HEBREW REHABILITATION CENTER FOR AGED · PI INOUYE, SHARON K. · 2013 to 2017
$656k
Preventable Deaths Due to DeliriumR03AG045633 · NIA · HEBREW REHABILITATION CENTER FOR AGED · PI INOUYE, SHARON K. · 2014 to 2015
$163k
NIA NIH HHS K07 AG041835NIA NIH HHS K23 AG048331NIA NIH HHS P01 AG031720NIA NIH HHS P30 AG021342NIA NIH HHS R03 AG045633
6 · The paper itself

Abstract

objectives(1) To determine the relationship of incident delirium during hospitalization with 90-day mortality; (2) to identify potential in-hospital mediators through which delirium increases 90-day mortality.

designAnalysis of data from Project Recovery, a controlled clinical trial of a delirium prevention intervention from 1995 to 1998 with follow-up through 2000.

settingLarge academic hospital.

participantsPatients ≥70 years old without delirium at hospital admission who were at intermediate-to-high risk of developing delirium and received usual care only. MEASUREMENTS: (1) Incident delirium; (2) potential mediators of delirium on death including use of restraining devices (physical restraints, urinary catheters), development of hospital acquired conditions (HACs) (falls, pressure ulcers), and exposure to other noxious insults (sleep deprivation, acute malnutrition, dehydration, aspiration pneumonia); (3) death within 90 days of admission.

resultsAmong 469 patients, 70 (15%) developed incident delirium. These patients were more likely to experience restraining devices (37% vs 16%, P < .001), HACs (37% vs 12%, P < .001), other noxious insults (63% vs 49%, P = .03), and 90-day mortality (24% vs 6%, P < .001). The inverse probability weighted hazard of death due to delirium was 4.2 (95% CI = 2.8-6.3) in bivariable analyses, increased in a graded manner with additional exposures to restraining devices, HACs, and other noxious insults, and declined by 10.9% after addition of these potential mediator categories, providing evidence of mediation.

conclusionRestraining devices, HACs, and additional noxious insults were more frequent among patients with delirium, increased mortality in a graded manner, and were responsible for a significant percentage of the association of delirium with death. Additional efforts to prevent potential downstream mediators through which delirium increases mortality may help to improve outcomes among hospitalized older adults.

Indexed as

HospitalizationMortalityAgedAged, 80 and overDeliriumFemaleGeriatric AssessmentHumansIatrogenic DiseaseMaleRestraint, Physicaldeliriumgeriatricshospital-acquired conditionshospital carequality of care

Identifiers

PMID28039852
PMCPMC5435507
OpenAlexW2561504840

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

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.