Table 3.
Associations between the various chest compression parameters and downtime, and survival till hospital discharge after ROSC.
| Ultimate survival outcome | ||||
|---|---|---|---|---|
| Did not survive till hospital discharge (n = 29) | Survived till hospital discharge (n = 10) | Overall (n = 39) | p-value1 | |
| Chest compression fraction (in %) | ||||
| Median (IQR) | 86.8 (76.3–90.7) | 92.3 (84.5–98.7) | 86.6 (77.0–92.3) | 0.040 |
| Chest compression depth (in cm) | ||||
| Median (IQR) | 5.5 (5.2–5.8) | 5.2 (4.9–6.1) | 5.4 (5.0–5.8) | 0.692 |
| Chest compression rate (per minute) | ||||
| Median (IQR) | 120.8 (113.4–127.3) | 119.9 (113.1–131.1) | 120.8 (113.3–126.4) | 0.962 |
| Release velocity (in cm/s) | ||||
| Median (IQR) | 26.3 (23.5–28.2) | 24.7 (22.1–29.5) | 25.6 (23.8–28.0) | 0.788 |
| Downtime (min) | (n = 28) | (n = 10) | (n = 38) | |
| Median (IQR) | 17.5 (10.5–22.0) | 6.0 (2.0–10.5) | 15.0 (7.5–20.3) | < 0.001 |
ROSC: Return of Spontaneous Circulation; IQR: Interquartile Range.
1Mann-Whitney U test.
Significant values are in bold.