Table 2 Interrater reliability for all subjects (n = 152)
Mean joint probability of agreement (%) | Mean Light’s Kappa | |
|---|---|---|
Undressed torso | 94.9 (±1.8) | 0.87 (±0.11) |
Compression-ventilation ratio of 30:2 | 85.3 (±2.7) | 0.63 (±0.05) |
No delay in starting CPR | 76.8 (±4.6) | 0.45 (±0.11) |
Correct compression rate | 76.6 (±5.4) | 0.49 (±0.07) |
Arms kept straight | 76.3 (±7.1) | 0.46 (±0.11) |
Correct compression depth | 75.3 (±3.4) | 0.49 (±0.04) |
Vertical direction of compressions | 74.2 (±4.6) | 0.44 (±0.09) |
Minimum no-flow time | 73.6 (±9.8) | 0.42 (±0.16) |
Correct hand position | 72.2 (±2.7) | 0.47 (±0.08) |
Complete release between compressions | 67.2 (±4.5) | 0.30 (±0.06) |