Psychiatric morbidity among survivors of in-hospital cardiopulmonary resuscitation: A nationwide cohort study in South Korea.

BACKGROUND

We aimed to examine the prevalence and associated factors of newly developed psychiatric morbidity among survivors of in-hospital cardiopulmonary resuscitation (ICPR). Additionally, we investigated whether pre-existing and newly developed psychiatric morbidities affect long-term mortality.

METHODS

We extracted data from the National Health Insurance Service database in South Korea. Adult ICPR survivors who underwent ICPR from January 1, 2010, to December 31, 2018, and who were alive for more than 1 year after ICPR were enrolled. Depression, anxiety, substance abuse, and post-traumatic stress disorder (PTSD) were evaluated as psychiatric morbidity.

RESULTS

A total of 22,611 survivors of ICPR from 615 hospitals in South Korea were included in the final analysis. Among them, 7825 (34.6%) had pre-existing psychiatric morbidity before ICPR, while 2524 (11.2%) had newly developed psychiatric morbidity after ICPR. In multivariable Cox regression analysis, compared to the no psychiatric morbidity group, the pre-existing psychiatric morbidity group (adjusted hazard ratio, 1.02; 95% confidence interval, 0.94, 1.11; P = 0.629) and the newly developed psychiatric morbidity group (adjusted hazard ratio, 1.02; 95% confidence interval, 0.90, 1.15; P = 0.798) were not associated with 1-year all-cause mortality among 1-year survivors of ICPR.

LIMITATION

Retrospective cohort design.

CONCLUSIONS

In South Korea, 11.2% of ICPR survivors had newly developed psychiatric morbidity such as depression, anxiety disorder, substance abuse, and PTSD within 1 year after ICPR. However, both pre-existing and newly developed psychiatric morbidities were not associated with 1-year all-cause mortality among 1-year survivors of ICPR.