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Journal of General Internal Medicine

, Volume 34, Issue 2, pp 206–210 | Cite as

Predictors Associated with Survival Among Elderly In-Patients Who Receive Cardiopulmonary Resuscitation in Japan: An Observational Cohort Study

  • Tetsuro HayashiEmail author
  • Masato Matsushima
  • Seiji Bito
  • Natsuko Kanazawa
  • Norihiko Inoue
  • Sarah Kyuragi Luthe
  • Christina C. Wee
Original Research

Abstract

Background

Little is known about the outcomes of in-hospital cardiopulmonary resuscitation (CPR) in Asian populations including elderly patients in Japan.

Objective

To determine the survival outcome of in-hospital CPR among elderly patients in Japan, and to identify predictors associated with survival.

Design

Retrospective cohort study in 81 Japanese hospitals from April 1, 2010 to March 31, 2016.

Patients

We included elderly patients (age ≥ 65 years) who received CPR after 2 days of hospitalization.

Main Measures

The primary outcome was survival at hospital discharge and the secondary outcomes were the discharge disposition and consciousness level of patients who survived to hospital discharge. To determine predictors associated with survival after in-hospital CPR, we fit multivariable models for patient-level and institutional-level factors.

Key Results

Among the 5365 patients who received CPR, 595 (11%) survived to discharge. Of those who survived to discharge, 46% of patients were discharged home, and 10% of patients were comatose at discharge. Older age and higher burden of comorbidities were associated with reduced survival. The adjusted OR was 0.35 (95% CI, 0.22–0.55) for age ≥ 90 years compared to age 65–69 years, and 0.68 (95% CI, 0.48–0.97) for Charlson Comorbidity Index score of ≥ 4 compared with score of 0. Other predictors of reduced survival included receiving CPR on weekends compared to weekdays (AOR, 0.63; 95% CI, 0.51–0.77) and in small hospitals compared to large hospitals (AOR, 0.58; 95% CI, 0.40–0.83).

Conclusions

Among elderly patients in Japan, the survival rate of in-hospital CPR was approximately one in ten, and less than half of these patients were discharged home. In addition to older age and higher illness burden, receiving CPR on weekends and/or in small hospitals were significant predictors of reduced survival. These findings should be considered in advanced care planning discussions with elderly patients to avoid subjecting patients to CPR that are likely futile.

KEY WORDS

aging end-of-life care decision making evidence base medicine 

Notes

Acknowledgments

We thank Mr. Masaya Nakadera for the assistance with data extraction and thank Dr. Suminobu Ito and Dr. Hiromasa Horiguchi for organizing this research.

Funding

This study was supported by a research grant for post-graduate students from Jikei University School of Medicine. The study sponsor had no role in the study design, data collection, analysis and interpretation, report writing, or the decision to submit the article for publication. MM is the program director of Jikei Clinical Research Program for Primary Care, and TH was a former trainee of the Jikei Clinical Research Program for Primary Care. When this study was conducted, TH was the Shigeaki Hinohara, MD, International Primary Care Fellow at Beth Israel Deaconess Medical Center (BIDMC) which was supported by the Ryoichi Sasakawa Fellowship Fund at BIDMC. SL was supported by grants from World Bank and Kamiyama Foundation. CW is supported by Midcareer Mentorship Award from the National Institutes of Health (K24DK087932).

Compliance with Ethical Standards

Conflict of Interest

The authors declare that they do not have a conflict of interest.

Supplementary material

11606_2018_4747_MOESM1_ESM.docx (18 kb)
ESM 1 (DOCX 17 kb)

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Copyright information

© Society of General Internal Medicine 2018

Authors and Affiliations

  • Tetsuro Hayashi
    • 1
    • 2
    Email author
  • Masato Matsushima
    • 2
  • Seiji Bito
    • 1
  • Natsuko Kanazawa
    • 3
    • 4
  • Norihiko Inoue
    • 3
    • 4
  • Sarah Kyuragi Luthe
    • 5
  • Christina C. Wee
    • 6
  1. 1.Division of Clinical Epidemiology National Hospital Organization Tokyo Medical CenterTokyoJapan
  2. 2.Division of Clinical EpidemiologyThe Jikei University School of MedicineTokyoJapan
  3. 3.Department of Clinical Data Management and Research, Clinical Research CenterNational Hospital Organization HeadquartersTokyoJapan
  4. 4.Department of Health Policy and InformaticsTokyo Medical and Dental University Graduate SchoolTokyoJapan
  5. 5.Department of Anesthesiology and Critical Care MedicineAsahikawa Medical UniversityAsahikawaJapan
  6. 6.General Medicine and Primary Care, Department of MedicineBeth Israel Deaconess Medical CenterBostonUSA

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