Table 4.
Comparison of adequate chest compression depth percentage between various subgroups.
| Variable | Group | P valuea | |
|---|---|---|---|
| 1-minute | 2-minute | ||
| Gender | |||
| Male (n = 53) | 36.4 (9.7, 82.8) | 11.9 (1.7, 60.4) | <0.001 |
| Female (n = 51) | 1.7 (0, 26.3) | 0.6 (0, 10.0) | 0.010 |
| Body mass index | |||
| <25 kg/m2 (n = 83) | 12.2 (0, 58.4) | 4.5 (0, 24.0) | <0.001 |
| ≥25 kg/m2 (n = 21) | 21.1 (3.2, 85.6) | 11.6 (0.5, 92.8) | 0.150 |
| History of CPR in a real-life situation, n (%) | |||
| Yes (n = 86) | 14.0 (0, 51.5) | 4.2 (0, 28.2) | 0.130 |
| No (n = 18) | 35.0 (2, 83.3) | 11.3 (1, 49.5) | <0.001 |
| Last CPR training session | |||
| <6 months ago (n = 31) | 33.5 (7.1, 67.3) | 20.2 (2.8, 59.3) | 0.010 |
| ≥6 months ago (n = 73) | 9.7 (0, 46.9) | 2.7 (0, 16.0) | <0.001 |
| Regular physical activity, n (%) | |||
| Yes (n = 24) | 49.7 (12.8, 81.0) | 9.9 (1.9, 53.5) | 0.020 |
| No (n = 80) | 8.7 (0, 39.7) | 4.1 (0, 23.8) | <0.001 |
Data are presented as median (interquartile range); CPR, cardiopulmonary resuscitation. aBetween groups.