group

observation group (n = 40)

control group (n = 40)

statistic

P

arrival to the emergency room time (min)

31.48 ± 4.36

30.52 ± 2.82

t = 1.165

0.248

from emergency room to the operating room time (min)

33.01 ± 3.94

44.67 ± 3.30

t = −14.346

0

average length of ICU stay (d)

average length of hospital stay (d)

18.30 ± 2.89

23.73 ± 2.50

t = −8.972

t = −2.652

total hospital costs

(wan yuan)

6.62 ± 1.33

7.39 ± 1.26

0

0.01