Objectives: This research aims to grasp the effects of the selection factors of the
vulnerable area for emergency medical service on the survival rate of
out-of-hospital cardiac arrest, and to provide basic data for establishing
strategies for the ...
Objectives: This research aims to grasp the effects of the selection factors of the
vulnerable area for emergency medical service on the survival rate of
out-of-hospital cardiac arrest, and to provide basic data for establishing
strategies for the enhancement of the survival rate and for the support projects
for the vulnerable areas for emergency medical service.
Materials and Methods: The research subjects were a total of 38,774 cases of
out-of-hospital cardiac arrest patients who were transferred to medical
institutions by the 1-1-9 ambulances of the fire departments of 16 cities and
provinces from January, 2011 to December 31, 2012, excluding the missing valuessuch as the cases in which the survival or cardiac arrest occurrence places could
not be confirmed in medical records. In order to grasp whether there were
differences in the survival rate according to the characteristics and factors of
occurrence places of out-of-hospital cardiac arrest, the independent two sample
t-test, variance analysis, and correlation analysis were conducted using SAS 9.2,
and in order to grasp the factors that exerted effects on the survival rate of
regions, the analysis was conducted using geographically weighted regression
analysis.
Results: The results of the analysis using the geographically weighted regression
analysis showed that, among the selection factors of the vulnerable areas of
emergency medical service, the higher the rate of the ambulance response rate with
8 minutes, the rate of the use of area emergency medical centers, and the rate of
the use of regional emergency medical centers, the higher was the survival rate of
out-of-hospital cardiac arrest patients, and the lower the rate of concordance
between out-of- hospital cardiac arrest occurrence places and the cities and
counties where medical institutions were located, the higher was the survival rate.
Conclusion: When out-of-hospital cardiac arrest occurs, it is necessary to enhance
the survival discharge rate through the appropriate counterstrategies in the stages
of the community – first aid – hospital and the qualitative enhancement of
emergency medical service, and the factors that exert influences on the result
index of emergency medical service need to be reexamined and the selection of, and
the support for, the vulnerable areas of emergency medical service need to be
improved.