Tuberculosis and Respiratory Diseases

  • 제87권3호
  • /
  • Pages.338-348
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  • 2024
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  • 1738-3536(pISSN)
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  • 2005-6184(eISSN)
대한결핵및호흡기학회 (The Korean Academy of Tuberculosis and Respiratory Diseases)
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Age Distribution and Clinical Results of Critically Ill Patients above 65-Year-Old in an Aging Society: A Retrospective Cohort Study

  • Song I Lee (Division of Allergy, Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University College of Medicine) ;
  • Jin Won Huh (Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Sang-Bum Hong (Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Younsuck Koh (Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine) ;
  • Chae-Man Lim (Department of Pulmonary and Critical Care Medicine, Asan Medical Center, University of Ulsan College of Medicine)
  • 투고 : 2023.10.02
  • 심사 : 2024.02.27
  • 발행 : 2024.07.31
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초록

Background: Increasing age has been observed among patients admitted to the intensive care unit (ICU). Age traditionally considered a risk factor for ICU mortality. We investigated how the epidemiology and clinical outcomes of older ICU patients have changed over a decade. Methods: We analyzed patients admitted to the ICU at a university hospital in Seoul, South Korea. We defined patients aged 65 and older as older patients. Changes in age groups and mortality risk factors over the study period were analyzed. Results: A total of 32,322 patients were enrolled who aged ≥65 years admitted to the ICUs between January 1, 2007, and December 31, 2017. Patients aged ≥65 years accounted for 35% and of these, the older (O, 65 to 74 years) comprised 19,630 (66.5%), very older (VO, 75 to 84 years) group 8,573 (29.1%), and very very older (VVO, ≥85 years) group 1,300 (4.4%). The mean age of ICU patients over the study period increased (71.9±5.6 years in 2007 vs. 73.2±6.1 years in 2017) and the proportions of the VO and VVO group both increased. Over the period, the proportion of female increased (37.9% in 2007 vs. 43.3% in 2017), and increased ICU admissions for medical reasons (39.7% in 2007 vs. 40.2% in 2017). In-hospital mortality declined across all older age groups, from 10.3% in 2007 to 7.6% in 2017. Hospital length of stay (LOS) decreased in all groups, but ICU LOS decreased only in the O and VO groups. Conclusion: The study indicates a changing demographic in ICUs with an increase in older patients, and suggests a need for customized ICU treatment strategies and resources.

키워드

과제정보

We appreciate the in-depth review of the statistical and methodological accuracy of this paper performed by the Academic Clinical Research Operating and Supporting System, Chungnam National University Hospital Biomedical Research Institute.

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