TABLE 3

Comparison of Selected Physiologic Parameters in a Car Seat or Car Bed With Respect to the Sequence of Position (Randomly Assigned as First or Second)

VariableMean ± SDSignificance Tests
Car Bed as FirstCar Bed as SecondCar Seat as FirstCar Seat as SecondPaPbPcPd
Mean O2 saturation, %96.9 ± 1.496.0 ± 1.795.6 ± 1.795.3 ± 1.7<.001.893.202.772
Minimal O2 saturation, %83.6 ± 5.783.4 ± 5.883.9 ± 4.783.9 ± 5.0.778.999.130.028
Proportion of study with O2 saturation of <95%, %11.2 ± 13.019.8 ± 21.723.1 ± 23.028.0 ± 26.5.001.068<.001.010
Desaturations, n/h10.1 ± 8.914.8 ± 12.017.9 ± 12.618.9 ± 12.6.002.761<.001.360
  • a Data show a comparison between car bed as first and car seat as first.

  • b Data show a comparison between car bed as second and car seat as second.

  • c Data show a comparison between car bed as first and car bed as second.

  • d Data show a comparison between car seat as first and car seat as second.