Table 4 Logistic regression analysis of prognostic factors for favorable neurological outcomes in all patients

Age (years)

0.94 (0.91–0.98)

0.94 (0.90–0.99)

Female sex

3.76 (1.35–10.42)

6.71 (1.42–31.74)

Witnessed cardiac arrest

 Yes

1.34 (0.44–4.12)

 No

1.00 (Ref.)

 Unknown

0.00 (0.00-)

Bystander CPR attempt

 Yes

5.12 (1.66–15.76)

 No

1.00 (Ref.)

 Unknown

5.84 (0.58–58.45)

Timing of cardiac arrest

 Before EMS arrival at scene

2.13 (0.25–)

 After EMS contact

1.00 (Ref.)

 Unknown

0.00 (0.00–)

Epinephrine administration before hospital arrival

 Yes

1.68 (0.64–4.36)

 No

1.00 (Ref.)

 Unknown

2.83 (0.55–14.46)

ROSC during transportation

 Yes

0.82 (0.23–2.91)

 No

1.00 (Ref.)

 Unknown

1.00 (0.22–4.60)

Time from cardiac arrest to admission

0.96 (0.91–1.00)

Cardiac rhythm at admission

 VF of pulseless VT

1.00 (Ref.)

1.00 (Ref.)

 PEA

0.25 (0.06–1.09)

0.63 (0.12–3.26)

 Asystole

0.00 (0.00–)

0.00 (0.00–)

 Unknown

4.53 (0.39–52.60)

Inf^a

Epinephrine administration after hospital arrival

 Yes

0.52 (0.17–1.65)

 No

1.00 (Ref.)

 Unknown

2.50 (0.22–28.13)

Gasping during resuscitation

7.90 (3.08–20.25)

7.01 (2.10–23.40)

ECPR

6.40 (1.46–28.04)

Therapeutic temperature management

 Yes

1.00 (Ref.)

1.00 (Ref.)

 No

0.00 (0.00–)

0.00 (0.00–)

 Unknown

0.00 (0.00–)

0.00 (0.00–)

Intra-aortic balloon pumping

 Yes

4.72 (1.35–)

 No

1.00 (Ref.)

 Unknown

0.00 (0.00–)

Percutaneous coronary intervention

 Yes

1.23 (0.48–3.16)

 No

1.00 (Ref.)

 Unknown

0.26 (0.03–2.05)