Table 2.

Test 2 results

Patients checking and calling for help						Valid value
Checking for response						Done/not done
Calling for help						Done/not done
Checking for breathing						Done/not done
Chest compression	1st cycle	2nd cycle	3rd cycle	4th cycle	5th cycle	Valid value
*The time interval from arrival on the scene to the first chest compression (s)						0–60
Number of chest compressions (n)						0–400
Mean compression depth (mm)						1–100
Number of adequate compression depth (n)						0–400
Adequate compression depth (%)						0–100
Mean compression rate (n/min)						1–200
Adequate compression rate (%)						0–100
Adequate compression depth and rate (%)						0–100
Number of compressions with correct hand position (n)						0–400
Correct hand position (%)						0–100
Number of chest compressions with full release (n)						0–400
Compression and full release (%)						0–100
Hands-off time (s)						0–120
AED						Valid value
AED use						Done/not done
Correct AED use						Yes/no
*Time from powering on the AED to defibrillation (s)						0–120
*Time from checking for a response to defibrillation (s)						0–300

Adequate compression depth, 5–6 cm; adequate compression rate, 100–120/min; correct hand position, hand position as the lower half of the sternum in the centre of the chest; compression and full release, less than or equal to 5-mm residual displacement; hands-off time, interruptions of chest compressions during cardiopulmonary resuscitation

*These variables can be obtained from recording devices such as smartphone cameras and video cameras