Table 1 Characteristics of the pediatric OHCA patients (N = 6765).

From: Impact of the COVID-19 pandemic on pediatric out-of-hospital cardiac arrest outcomes in Japan

Variables

Total (%)

(N = 6765)

Pre-COVID-19

2018–2019 (%)

(N = 3524)

During-COVID-19

2020–2021 (%)

(N = 3241)

p value

(2018–2019 vs 2020–2021)

Male

4122 (80.9)

2160 (61.3)

1962 (60.5)

.524

Witnessed cardiac arrest

2433 (36.0)

1290 (36.6)

1143 (35.3)

.252

Bystander-initiated chest compressions

4062 (68.4)

2111 (71.1)

1951 (65.8)

 < .001

Bystander-initiated rescue breaths

897 (17.6)

548 (22.3)

349 (13.0)

 < .001

Bystander-AED use

215 (4.3)

85 (3.7)

130 (4.9)

.029

Verbal guidance from a dispatcher

3915 (61.2)

2106 (64.1)

1809 (58.1)

 < .001

Presence of a physician in the ambulance

585 (8.6)

305 (8.7)

280 (8.6)

.982

Time from call ambulance to hospital (minutes)

31 ± 15

30 ± 15

32 ± 16

 < .001

The cause of cardiac arrest

Cardiac etiology

2108 (31.2)

1090 (30.9) 

1018 (31.4)

.671

Non-cardiac etiology

4657 (68.8)

2434 (69.1)

2223 (68.6)

 

The initial ECG waveform at the time of emergency medical services contact

.105

VF

209 (3.1)

109 (3.1)

100 (3.1)

 

pulseless VT

8 (0.1)

8 (0.2)

0

 

PEA

1052 (15.6)

551 (15.6)

501 (15.5)

 

Asystole

4648 (68.7)

2409 (68.4)

2239 (69.1)

 

Others

848 (12.5)

447 (12.7)

401 (12.4)

 

Prehospital ROSC

959 (14.2)

533 (15.1)

426 (13.1)

.020

One-month survival

1265 (18.7)

682 (19.3)

583 (18.0)

.150

CPC

.201

 Good function

669 (9.9)

373 (11)

296 (9.1)

 

 Moderate disability

75 (1.1)

39 (1.1)

36 (1.1)

 

 Severe disability

142 (2.1)

81 (2.3)

61 (1.9)

 

 Coma or vegetative state

341 (5.0)

171 (4.9)

170 (5.3)

 

 Death or brain death

5538 (81.9)

2860 (81.2)

2678 (82.6)

 

OPC

.242

 Good function

671 (9.9)

374 (11)

297 (9.2)

 

 Moderate disability

72 (1.1)

39 (1.1)

33 (1.0)

 

 Severe disability

147 (2.1)

82 (2.3)

65 (2.0)

 

 Coma or vegetative state

337 (5.0)

169 (4.8)

168 (5.2)

 

 Death or brain death

5538 (81.9)

2860 (81.2)

2678 (82.6)

 
  1. OHCA out-of-hospital cardiac arrest; ROSC return of spontaneous circulation; CPC Cerebral Performance Categories; OPC Overall Performance Categories; ECG electrocardiogram; VF ventricular fibrillization; VT ventricular tachycardia; PEA pulseless electrical activity; AED automated external defibrillator. Bold values denote statistical significance at p < .05.