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Table 2 Circumstantial factors

From: Early predictors of poor outcome after out-of-hospital cardiac arrest

 

Outcome at 6 months

Adjusted for age

CPC 1–2 (n = 440)

CPC 3–5 (n = 493)

OR (95% CI)a

p Value

CA at home (0/1)b

192 (44)

306 (62)

2.16 (1.64–2.85)

<0.0001

Witnessed (0/1)

406 (92)

427 (87)

0.61 (0.39–0.97)

0.04

Bystander CPR (0/2)

347 (79)

331 (67)

0.61 (0.45–0.83)

0.002

First monitored rhythm other than VT/VF (0/1)

38 (9)

169 (34)

5.14 (3.46–7.64)

<0.0001

Intubation (6/8)

273 (63)

352 (73)

1.67 (1.24–2.25)

0.0007

CA until BLS (73/141)

1 (0–2)

1 (0–3)

1.10 (1.04–1.17)

0.0005

CA until ALS (8/8)

8 (5–11)

10 (7–15)

1.07 (1.04–1.10)

<0.0001

CA until ROSC (0/1)

20 (14–30)

31 (21–47)

1.57 (1.42–1.72)c

<0.0001

No flowd (2/4)

1 (0–3)

2 (0–8)

1.09 (1.05–1.12)

<0.0001

Low flowe (0/1)

19 (12–27)

27 (17–40)

1.43 (1.31–1.56)c

<0.0001

Adrenaline (3/2)

258 (59)

423 (86)

4.62 (3.29–6.48)

<0.0001

Seizures (1/2)

33 (8)

23 (5)

0.64 (0.36–1.15)

0.14

Automatic compression (0/3)

92 (21)

127 (26)

1.27 (0.92–1.75)

0.15

  1. Abbreviations: CA Cardiac arrest, CPC Cerebral Performance Category, CPR Cardiopulmonary resuscitation, VT/VF Ventricular tachycardia/ventricular fibrillation, BLS Basic life support, ALS Advanced life support, ROSC Return of spontaneous circulation
  2. Data are presented as number (%) or median (25th and 75th percentiles)
  3. Poor outcome defined as CPC 3–5 at 6 months
  4. aOR for poor outcome (CPC 3–5) with corresponding 95% CI
  5. bNumber missing in the two groups, respectively
  6. cSquare root transformed
  7. dNo flow: time from CA to start of CPR measured in minutes
  8. eLow flow: time from start of CPR to ROSC measured in minutes
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Critical Care

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