Table 2

Manual (ie, delivered) and LVR counter recorded counts for compressions and repetitions, for each experiment

CompressionsRepetitions
Manual countLVR counterPercent error
(95% CI)
Manual countLVR counterPercent error
(95% CI)
Experiment 150492
Experiment 2
 Set 1303413 (5 to 30)10100 (0 to 28)
 Set 2303413 (5 to 30)10100 (0 to 28)
 Set 3303930 (17 to 48)10100 (0 to 28)
 Set 430293 (0.6 to 17)10100 (0 to 28)
Experiment 3
 Zero leak10011818 (12 to 27)
 Minimal leak1008614 (9 to 22)
 Moderate leak10000 (0 to 4)
 Large leak10000 (0 to 4)
  • Experiment 1, low-pressure bench test; Experiment 2, high-pressure bench test; and Experiment 3, simulated leak bench test.

  • LVR, lung volume recruitment.