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Background <p>Despite the emergency department (ED) being a primary entry point for acutely ill older adults, delirium in this setting remains poorly characterized. This study aimed to determine ED delirium prevalence, identify associated patient characteristics in a diverse population, describe current ED management practices, and examine hospital utilization outcomes in a large, heterogeneous cohort.</p> Methods <p>This multi-site retrospective cohort study analyzed 2,827 older adult patients (≥ 65&#xa0;years) across three diverse EDs within a single integrated health system in the New York metropolitan area, identifying delirium via rigorous, validated in-depth chart review requiring evidence of acute change from baseline. Independent risk factors for ED delirium and hospital admission were identified via modified Poisson regression. Management strategies and 30-day hospital utilization outcomes were characterized. All analyses were stratified by control and intervention periods of a parent delirium screening trial.</p> Results <p>ED delirium prevalence was 16.0% (95% confidence interval: 14.6–17.4%), consistent across study periods and sites. The prevalence of delirium was 27.3% among hospitalized patients; 7.9% of all discharged patients had delirium. Independent risk factors included advanced age (adjusted relative risk, aRR = 1.01), dementia (aRR = 3.10), higher Charlson Comorbidity Index (aRR = 1.06), facility arrival (aRR = 1.28), and higher ED acuity (aRR = 3.85 for highest). Patients with delirium were more likely to receive physical restraints, psychoactive medications, and constant observation, but also safety precautions, family involvement, and palliative care consults (all p &lt; 0.001). Delirium independently predicted hospital admission (aRR = 1.54) and was associated with higher 30-day readmissions (19% vs. 13%; p = 0.002).</p> Conclusions <p>Approximately 1 in 6 older ED patients had delirium, including 7.9% who were discharged home. ED management involved both restrictive (restraints, psychoactive medications) and supportive (Goals-of-Care discussions, family involvement, safety precautions) strategies, though the latter remained underutilized. These findings underscore the critical need for standardized delirium screening, enhanced recognition, and supportive strategies.</p>

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Delirium in Older Adults Presenting to the Emergency Department: Prevalence, Risk Factors, Management Strategies, and Hospital Utilization Outcomes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年6月2日

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  • Liron Sinvani,
  • Sofie Nelson,
  • Alexandra Perrin,
  • Shahidul Islam,
  • Cristina Sison,
  • Stefani Slotnick,
  • Vincent Chua,
  • Kristen Porreca,
  • Douglas P. Barnaby,
  • Susan Kwiatek,
  • Karen Cary,
  • Nidhi Garg,
  • Payal Sud,
  • Alex Makhnevich

摘要

Background

Despite the emergency department (ED) being a primary entry point for acutely ill older adults, delirium in this setting remains poorly characterized. This study aimed to determine ED delirium prevalence, identify associated patient characteristics in a diverse population, describe current ED management practices, and examine hospital utilization outcomes in a large, heterogeneous cohort.

Methods

This multi-site retrospective cohort study analyzed 2,827 older adult patients (≥ 65 years) across three diverse EDs within a single integrated health system in the New York metropolitan area, identifying delirium via rigorous, validated in-depth chart review requiring evidence of acute change from baseline. Independent risk factors for ED delirium and hospital admission were identified via modified Poisson regression. Management strategies and 30-day hospital utilization outcomes were characterized. All analyses were stratified by control and intervention periods of a parent delirium screening trial.

Results

ED delirium prevalence was 16.0% (95% confidence interval: 14.6–17.4%), consistent across study periods and sites. The prevalence of delirium was 27.3% among hospitalized patients; 7.9% of all discharged patients had delirium. Independent risk factors included advanced age (adjusted relative risk, aRR = 1.01), dementia (aRR = 3.10), higher Charlson Comorbidity Index (aRR = 1.06), facility arrival (aRR = 1.28), and higher ED acuity (aRR = 3.85 for highest). Patients with delirium were more likely to receive physical restraints, psychoactive medications, and constant observation, but also safety precautions, family involvement, and palliative care consults (all p < 0.001). Delirium independently predicted hospital admission (aRR = 1.54) and was associated with higher 30-day readmissions (19% vs. 13%; p = 0.002).

Conclusions

Approximately 1 in 6 older ED patients had delirium, including 7.9% who were discharged home. ED management involved both restrictive (restraints, psychoactive medications) and supportive (Goals-of-Care discussions, family involvement, safety precautions) strategies, though the latter remained underutilized. These findings underscore the critical need for standardized delirium screening, enhanced recognition, and supportive strategies.