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Table 3 Characteristics and outcomes of bystander-witnessed OHCA patients caused by pharyngeal or laryngeal obstruction

From: Effectiveness of prehospital Magill forceps use for out-of-hospital cardiac arrest due to foreign body airway obstruction in Osaka City

 

Forceps use

Non-use

pvalue

N = 146

N = 94

Age, year, mean ± SD

73.6 ± 12.9

78.1 ± 14.3

0.013

Male, N (%)

91 (62.3)

52 (55.3)

0.285

Location of accident, n (%)

   

 Home

107 (73.3)

54 (57.4)

 

 Health care facility

16 (11.0)

35 (37.2)

<0.001

 Others

23 (15.8)

5 (5.3)

 

Activities of daily living before arrests, N (%)

   

 Good

80 (54.8)

40 (42.6)

0.062

 Disability

61 (41.8)

53 (56.4)

 

 Unclassified

5 (3.4)

1 (1.1)

 

Ventricular fibrillation as first documented rhythm, N (%)

0 (0.0)

3 (2.1)

0.281

Bystander-initiated CPR, N (%)

   

 Compression-only CPR

8 (5.5)

16 (17.0)

 

 Conventional CPR

20 (13.7)

24 (25.5)

0.001

 No CPR

117 (80.1)

54 (57.4)

 

Epinephrine, N (%)

2 (3.6)

3 (6.8)

0.653

Intubation, N (%)

7 (4.8)

8 (8.5)

0.281

Time interval, min, mean ± SD

   

 Collapse to call

3.2 ± 5.5

3.1 ± 4.0

0.818

 Call to EMS arrival at the scene

7.4 ± 2.4

7.2 ± 2.4

0.513

 Call to arrival at the hospital

28.0 ± 7.6

24.7 ± 7.1

0.001

Outcomes

   

 Survival at one month, N (%)

39 (26.7)

16 (17.0)

0.086

 Neurologically favorable one-month survival, N (%)

24 (16.4)

4 (4.3)

0.004

  1. Abbreviations: SD standard deviation, CPR cardiopulmonary resuscitation, EMS emergency medical system.