Table 4 Comparison of quality of chest compression measures in the manual and load-distributing band (LDB) phases
Variables measured | Manual CPR (n = 29) | LDB CPR (n = 151) | Mean difference | 95% CI for differencee |
|---|---|---|---|---|
Median NFT 0 to 5 minutes (IQR), sec | 84 (43-107) | 114 (75-164) | -40 | (-66 to -14) |
Mean NFR 0 to 5 minutes (SD) | 0.29 (0.17) | 0.42 (0.38) | -0.13 | (-0.22 to -0.05) |
Median NFT 5 to 10 minutes (IQR), sec | 76 (50-137) | 53 (37-97) | 25 | (-3 to 52) |
Mean NFR 5 to 10 minutes (SD) | 0.33 (0.213) | 0.24 (0.194) | 0.09 | (-0.01 to 0.18) |
Mean CPR ratio (SD) | 36 (21) | 50 (28) | -14 | (-24 to -3) |
Mean compression ratio (SD) | 34 (19) | 46 (26) | -13 | (-22 to -3) |
Mean compression rate/minute (SD) | 126 (14) | 104 (30) | 22 | (11 to 33) |
Mean compression/min (SD) | 40 (23) | 46 (28) | -6 | (-17 to 5) |
Mean ventilation rate/minute 0 to 5 minutes (SD) | 13 (4) | 8 (4) | 4 | (2 to 6) |
Mean ventilation/minute 0 to 5 minutes (SD) | 12 (4) | 9 (4) | 3 | (2 to 5) |
Mean ventilation rate/minute 5 to 10 minutes (SD) | 13 (5) | 7 (3) | 5 | (4 to 7) |
Mean ventilation/minute 5 to 10 minutes (SD) | 12 (5) | 8 (3) | 5 | (3 to 6) |