Effects of Prehospital Factors on Survival of Out-Of-Hospital Cardiac Arrest Patients: Age-Dependent Patterns

Many prehospital factors that are known to influence survival rates after out-of-hospital cardiac arrest (OHCA) have been rarely studied as to how their influence varies depending on the age. In this study, we tried to find out what prehospital factors affect the survival rate after OHCA by age grou...

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Bibliographic Details
Published in:International journal of environmental research and public health 2020-07, Vol.17 (15), p.5481
Main Authors: Rhee, Bo Yoon, Kim, Boram, Lee, Yo Han
Format: Article
Language:English
Subjects:
Age groups
Cardiac arrest
Cardiopulmonary resuscitation
CPR
Emergency communications systems
Emergency medical care
Emergency response
Etiology
First aid
Gender
Heart
Patients
Regression analysis
Resuscitation
Roads & highways
Survival
Variables
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Summary:Many prehospital factors that are known to influence survival rates after out-of-hospital cardiac arrest (OHCA) have been rarely studied as to how their influence varies depending on the age. In this study, we tried to find out what prehospital factors affect the survival rate after OHCA by age groups and how large the effect size of those factors is in each age group. We used the South Korean OHCA registry, which includes information on various prehospital factors relating OHCA and final survival status. The association between prehospital factors and survival was explored through logistic regression analyses for each age group. The effects of prehospital factors vary depending on the patient’s age. Being witnessed was relatively more influential in younger patients and the presence of first responders became more important as patients became older. While bystander cardiopulmonary resuscitation (CPR) did not appear to significantly affect survival in younger people, use of an automated external defibrillator (AED) showed the largest effect size on the survival in all age groups. Since the pathophysiology and etiologies of OHCA vary according to age, more detailed information on life support by age is needed for the development and application of more specialized protocols for each age.
ISSN:1660-4601
1661-7827
1660-4601
DOI:10.3390/ijerph17155481