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Table 4 Estimation of the overall outcomes after witnessed OHCA of cardiac origin for the baseline scenario (estimated current situation in Belgium) and scenario of nation-wide EVapp implementation

From: Cost-effectiveness of a novel smartphone application to mobilize first responders after witnessed OHCA in Belgium

(%)

Worst

Medium

Best

Baseline scenario

EMS

bCPR

bCPR + AED

EMS

bCPR

bCPR + AED

EMS

bCPR

bCPR + AED

Survival to discharge

5

3

1

6

5

1

7

6

2

Deceased

59

30

2

58

28

2

57

27

1

CPC 1–2

4

3

0

5

4

1

6

5

2

CPC 3–4

1

1

0

1

1

0

1

1

0

EVapp scenario

Survival to discharge

2

5

5

2

7

6

3

10

18

Deceased

23

45

20

23

43

19

22

40

7

CPC 1–2

2

4

4

2

6

5

2

8

15

CPC 3–4

0

1

1

0

1

1

0

1

3

  1. Data was retrieved from literature. With EMS: first response by the emergency medical system, bCPR: early bystander/ first responder CPR before arrival of the EMS, bCPR + AED: early bystander/ first responder CPR and defibrillation before arrival of the EMS, CPC: cerebral performance category as indication of neurological outcome (1–2: good, 3–4: bad). The values were obtained by combination of outcomes (Table 2) and response distributions (Table 3)
  2. *The medium case was calculated as the average value of both extreme values