A randomized controlled trial of the effectiveness of simplified CPR education for the general public.

INTERVENTION: 180‐minute education of standard CPR consisting of chest compression, ventilation, and AED operation. 120‐minute education of simplified CPR consisting of chest compression and AED operation. CONDITION: Cardiac arrest PRIMARY OUTCOME: Ratio of the number of chest compression appropriately performed during 2 minutes to theoretical value. SECONDARY OUTCOME: 1.Number of chest compression per minute 2.Number of appropriate chest compression per minute 3.Proportion of appropriate chest compression per minute ; 4.Interruption time of chest compression 5.Time to first chest compression 6.Average depth and velocity of compression 7.Time to first AED discharge 8.Number and volume of ventilation per minute 9.Number of appropriate ventilation 10.Time to first ventilation INCLUSION CRITERIA: General public 18 years of age or older living in Japan.