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Table 2 Showed median times of CPR outcomes between an online medical command versus on-scene medical command

From: The CPR outcomes of online medical video instruction versus on-scene medical instruction using simulated cardiac arrest stations

Outcomes

Median time, seconds

HR

p*

Online medical command

On-scene medical command

Time from start to chest compression

102 (95 % CI 56, 132)

36 (95 % CI: 27, 50)

3.98 (95 % CI: 1.61, 9.87)

0.002

Time from start to VT/VF detection

187 (95 % CI: 106, 239)

99 (95 % CI: 77, 128)

9.64 (95 % CI: 2.58, 35.99)

<0.001

Time from VT/VF detection to the first defibrillation

57 (95 % CI: 35, 107)

28 (95 % CI: 15, 39)

2.84 (95%CI: 1.15, 7.01)

0.017

Time from start to adrenaline injection

282 (95 % CI: 226, 390)

165 (95 % CI: 136, 238)

9.81 (95 % CI 2.7, 35,66)

<0.001

  1. Note. CPR, cardiopulmonary resuscitation, HR hazard ratio by the Cox regression analysis; VT ventricular tachycardia, VF ventricular fibrillation
  2. *p value of log rank test