Table 1.
Median values (5/95 percentile in parenthesis) of the mean rate and depth per record for the regular and tilt sessions with T w = 3 s. The Mann-Whitney U test was used to compare the values obtained from the gold standard (CD signal) and the acceleration (accel. signal). No significant difference was observed for any of the CPR target conditions.
| Target | Regular session | Tilt session | ||
|---|---|---|---|---|
| CD signal | Accel. signal | CD signal | Accel. signal | |
| Ratea | ||||
| 80 min−1 | 80.8 (77.4–84.8) | 80.9 (77.5–84.9) | 80.2 (77.5–83.6) | 80.3 (77.7–83.6) |
| 100 min−1 | 100.1 (97.5–102.2) | 100.0 (97.4–102.3) | 100.3 (96.5–105.1) | 100.1 (96.2–105.3) |
| 120 min−1 | 120.5 (117.4–123.8) | 120.4 (117.6–123.9) | 120.2 (116.9–123.7) | 120.3 (116.9–124.0) |
| 140 min−1 | 140.1 (134.4–142.0) | 140.2 (134.8–142.1) | 140.2 (135.1–143.4) | 140.1 (135.3–143.2) |
| Depthb | ||||
| 30 mm | 30.4 (27.7–33.3) | 30.3 (27.0–33.5) | 29.7 (27.5–32.6) | 29.7 (27.0–33.2) |
| 50 mm | 50.1 (45.4–54.1) | 50.1 (45.6–54.9) | 52.3 (49.1–55.1) | 52.5 (49.1–57.0) |
a40 records per session, b80 records per session.