Table 3 Demographics on hospital arrival and in-hospital treatments of patients before and after the COVID-19 pandemic

ECG on hospital arrival

< 0.01

 VF

89/2015

(4.4)

163/5023

(3.2)

 Pulseless VT

7/2015

(0.3)

17/5023

(0.3)

 PEA

388/2015

(19.3)

912/5023

(18.2)

 Asystole

1290/2015

(64.0)

3461/5023

(68.9)

 ROSC

241/2015

(12.0)

463/5023

(9.2)

BT on hospital arrival, ºC

35.6

(34.6–36.3)

35.8

(34.8–36.4)

0.05

GCS on hospital arrival

0.31

 3

1951/2015

(96.8)

4886/5023

(97.3)

 4–15

64/2015

(3.2)

137/5023

(2.7)

Blood tests

 Lactate (mmol) †

1.8

(1.3–143.0)

1.9

(1.3–150.0)

0.11

 WBC (10³/µL)

9.8

(7.3–12.7)

9.4

(7.0-12.5)

< 0.01

 Hb (g/dL)

12.0

(10.0-13.7)

11.9

(10.0-13.8)

0.35

 pH

6.85

(6.72–6.99)

6.85

(6.72–6.98)

0.66

 PaCO₂ (mmHg)

86.4

(66.4–113.0)

87.8

(66.3–114.0)

0.19

 PaO₂ (mmHg)

33.1

(18.0-68.3)

33.0

(18.2–64.0)

0.48

 HCO₃ (mEq/L)

15.1

(11.1–18.9)

15.3

(11.6–18.9)

0.05

 BE (mEq/L)

-19.0

(-24.0 to -13.3)

-19.1

(-24.4 to -13.8)

0.05

Mechanical chest compression

311/2015

(15.4)

833/5023

(16.6)

0.34

Defibrillation

207/2008

(10.3)

484/4997

(9.7)

0.43

ECMO

84/2015

(4.2)

173/5023

(3.4)

0.14

Coronary angiography

146/2015

(7.2)

252/5023

(5.0)

< 0.01

Coronary intervention

62/140

(44.3)

141/250

(56.4)

0.02

IABP

52/2015

(2.6)

95/5023

(1.9)

0.07

Temperature control

127/1943

(6.5)

282/4985

(5.7)

0.16

Medications

 Epinephrine

1503/2015

(74.6)

3581/5023

(71.3)

< 0.01

 Amiodarone

121/2015

(6.0)

238/5023

(4.7)

0.03

 Atropine

23/2015

(1.1)

25/5023

(0.5)

< 0.01

 Magnesium sulfate

19/2015

(0.9)

25/5023

(0.5)

0.03

 Nifekalant

9/2015

(0.4)

22/5023

(0.4)

0.96

 Lidocaine

9/2015

(0.4)

17/5023

(0.3)

0.50

 Vasopressin

6/2015

(0.3)

1/5023

(0.0)

< 0.01