Table 1.
Rate of chest compressions.
| Parameters | Children manikin | Infant manikin | |||||
|---|---|---|---|---|---|---|---|
| 15:2 ratio | 30:2 ratio | p | 15:2 ratio | 30:2 Ratio | p | ||
| (n = 26) | (n = 26) | (n = 26) | (n = 26) | ||||
|
Mean rate (min-1) Mean (SD) |
Minute 1 | 109.0 (9.2) | 109.0 (11.8) | 0.98 | 106.3 (10.7) | 107.8 (11.4) | 0.54 |
| Minute 2 | 109.3 (11.1) | 108.2 (12.3) | 0.63 | 106.2 (10.4) | 107.3 (11.9) | 0.64 | |
| Minute 3 | 108.9 (10.4) | 108.2 (11.8) | 0.74 | 105.4 (12.1) | 106.6 (13.0) | 0.64 | |
| Overall | 109.1 (11.5) | 108.5 (12.7) | 0.78 | 108.3 (13.7) | 107.2 (12.4) | 0.68 | |
|
Percentage of chest compressions Mean (SD) |
Lower rate than optimal | 14.3 (22.6) | 20.3 (30.6) | 0.35 | 18.5 (21.0) | 23.8 (33.2) | 0.39 |
| Optimal rate | 55.8 (35.1) | 54.1 (39.1) | 0.83 | 62.1 (31.5) | 57.0 (31.1) | 0.55 | |
| Higher rate than optimal | 29.4 (34.5) | 28.8 (40.1) | 0.94 | 19.4 (31.5) | 19.2 (25.8) | 0.98 | |
|
Number of chest compressions Mean (SD) |
Minute 1 | 54.4 (10.4) | 67.5 (12.4) | <0.01 | 56.1 (9.5) | 67.3 (12.2) | <0.01 |
| Minute 2 | 64.0 (11.9) | 81.0 (10.7) | <0.01 | 66.1 (10.8) | 80.9 (10.6) | <0.01 | |
| Minute 3 | 63.1 (10.5) | 80.6 (11.9) | <0.01 | 65.3 (11.8) | 80.9 (10.1) | <0.01 | |
| Mean | 60.5 (10.2) | 76.4 (9.0) | <0.01 | 62.5 (8.9) | 76.4 (9.0) | <0.01 | |
|
Time without compressions (seconds in each CPR session) Mean (SD) |
74.0 (12.6) | 45.3 (7.1) | <0.01 | 68.4 (18.6) | 42.9 (11.3) | <0.01 | |
Paired T-student test.