Objective To study the
time extended for getting
emergency intervention in different modes of
transportation and factors influencing the modes of
transportation of patients with
ST elevation myocardial infarction (
STEMI).
Methods A total of 564 consecutive
patients with
STEMI admitted from September 2013 to June 2016 were enrolled in the study.The clinical data about
time consumed for getting
emergency intervention and modes of
transportation were collected.Results According to the mode of
transportation,
patients were divided into three groups
emergency care system (
EMS)
transportation group (n =96),
self-
transportation group (n =206) and
referral group in which the
patients were sent in from other
hospitals (n =262).
EMS transportation group had significantly shorter total ischemic
time before
emergency treatment than
self-
transportation group (229 rin vs.418 min,P < 0.05) and
referral group (229 min vs.512 rin,P < 0.05),and significantly shorter length of pre-
hospital time than
self-arrival group (55 min vs.110 min;P<0.05) and
referral group (55 min vs.372 min;P<0,05).The
referral group had longer pre-
hospital time and the
self-
transportation group had longer door-to-balloon
time,but there was no difference in total ischemic
time between the
self-arrival and
referral group (Z =-1.882,P =0.068).Multivariate
logistic regression was used to analyze influence factors in mode of
transportation(1)
patients characterized with
high school or
university education,profession of civil service,and their
transportation distance more than 30 km were greater in number than
referral group (P < 0.05);(2)
patients identified with senior middle
school education,staff member of
public sectors or company,their
transportation distance less than 30 km,and with killip grade above Ⅱ were more likely to have
EMS transport (P < 0.05);(3)
patients defined as businessmen without taking out new rural cooperative medical
insurance,taking up
transportation distance less than 80 km,and subjecting to killip grade Ⅰ had a higher proportion of individuals of this kind taking
self-
transportation (P < 0.05).Conclusion Mode of
transportation is an important factor that
affects the
time extended to get
emergency intervention.
Education level,
occupation,medical
insurance type,
transportation distance,killip grade are associated with modes of transport.