BioMed Research International / 2014 / Article / Tab 1

Clinical Study

A New Method for Feedback on the Quality of Chest Compressions during Cardiopulmonary Resuscitation

Table 1

Median values (5/95 percentile in parenthesis) of the mean rate and depth per record for the regular and tilt sessions with  s. The Mann-Whitney 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.

TargetRegular session Tilt session
CD signal Accel. signal CD signal Accel. signal

Ratea
 80 min−180.8 (77.4–84.8) 80.9 (77.5–84.9) 80.2 (77.5–83.6) 80.3 (77.7–83.6)
 100 min−1100.1 (97.5–102.2) 100.0 (97.4–102.3) 100.3 (96.5–105.1) 100.1 (96.2–105.3)
 120 min−1120.5 (117.4–123.8) 120.4 (117.6–123.9) 120.2 (116.9–123.7) 120.3 (116.9–124.0)
 140 min−1140.1 (134.4–142.0) 140.2 (134.8–142.1) 140.2 (135.1–143.4) 140.1 (135.3–143.2)
Depthb
 30 mm30.4 (27.7–33.3) 30.3 (27.0–33.5) 29.7 (27.5–32.6) 29.7 (27.0–33.2)
 50 mm50.1 (45.4–54.1) 50.1 (45.6–54.9) 52.3 (49.1–55.1) 52.5 (49.1–57.0)

40 records per session, b80 records per session.