• In-Ae Song, You Hwan Jo, and Tak Kyu Oh.
• Department of Anesthesiology and Pain Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea; Department of Anesthesiology and Pain Medicine, College of Medicine, Seoul National University, Seoul, South Korea.
• Resuscitation. 2022 Jun 1; 175: 36-43.

AimThis study investigated the changes in quality of life (QOL) after in-hospital cardiopulmonary arrest (IHCA) among survivors and examined the association between worsening QOL and 3-year all-cause mortality.MethodsThis population-based cohort study used data from the National Health Insurance Service database in South Korea. Adult survivors who experienced IHCA between January 1, 2010, and December 31, 2018, and were alive for over 1 year after IHCA were included. Worsening QOL among IHCA survivors was determined using three criteria: decreased household income, unemployment, and acquired disability.ResultsA total of 22,611 IHCA survivors from 903 hospitals were included in the final analysis, and 7,796 (34.5%) experienced worsening QOL. Specifically, 5,595 (24.7%), 1,694 (7.5%), and 1,617 (7.2%) survivors experienced decreased household income, unemployment, and acquired disability, respectively. The proportion of brain lesion disability increased from 6.3% to 10.8% after IHCA. In multivariable Cox regression, worsening QOL was not associated with 3-year all-cause mortality (adjusted hazard ratio [aHR]: 1.03, 95% confidence interval [CI]: 0.96, 1.11; P = 0.372). However, among the QOL factors, acquired disability was associated with a 1.29-fold higher risk of 3-year all-cause mortality among IHCA survivors (aHR: 1.29, 95% CI: 1.15, 1.46; P < 0.001).ConclusionApproximately one-third of IHCA survivors experienced worsening QOL (decreased household income, unemployment, and acquired disability) at 1-year follow-up after IHCA in South Korea. Although overall worsening of QOL was not associated with 3-year all-cause mortality, acquired disability was associated with increased 3-year all-cause mortality among IHCA survivors.Copyright © 2022 Elsevier B.V. All rights reserved.

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