|
(OHCA patients)
| |
|
Age (yr) (mean ± standard deviation [SD])
|
65.73 ± 15.28
|
|
Sex (male), no. (%)
|
16368 (78.50)
|
|
Origin of OHCA (cardiac origin), no. (%)
|
18598 (89.19)
|
|
Relationship between bystander and patient (family member), no. (%)
|
11194 (53.69)
|
|
(CPR initiated by bystander)
| |
|
Chest compressions (yes), no. (%)
|
9681 (46.43)
|
|
Rescue breathing (yes), no. (%)
|
2228 (10.69)
|
|
(Life support by EMS personnel)
| |
|
Emergency life-saving technician in ambulance (yes), no. (%)
|
20284 (97.28)
|
|
Advanced life support by MD (yes), no. (%)
|
2648 (12.70)
|
|
Time from call to arrival at scene (min) (mean ± SD)
|
7.09 ± 3.25
|
|
Time from call to arrival at hospital (min) (mean ± SD)
|
33.68 ± 15.50
|
|
Use of ALS devices (laryngeal mask/an adjunct airway/ tracheal tubes), no. (%)
|
8440 (40.48)
|
|
Epinephrine use (yes), no. (%)
|
4644 (22.27)
|
|
Time from the first defibrillation to the first ROSC before hospital arrival (min) (mean ± SD)
|
7.67 ± 9.59
|
|
Number of defibrillations by EMS personnel (mean ± SD)
|
2.36 ± 1.67
|
|
Proportions of the number of defibrillations (%)
| |
|
1
|
8403 (40.30)
|
|
≥2
|
12448 (59.70)
|
|
Frequency of patients who took ≤1 min. from the first defibrillation to the first ROSC before hospital arrival (%)
|
2743 (13.16)
|
|
(Endpoint)
| |
|
1-month survival after cardiac arrest (yes), no. (%)
|
6480 (31.08)
|
|
ROSC (yes), no. (%)
|
6876 (32.98)
|
