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Table 2 Linear regression (dependent variable: log transformed sidestream CO 2 )

From: Performance of capnometry in non-intubated infants in the pediatric intensive care unit

Independent variables β (Unstandardized coefficient) R2 p value
  Unadjusted effect
Respiratory rate -.003 .043 .195
Weight -.019 .033 .248
PtcCO2 .016 .650 <.001
PaCO2 .019 .855 <.001
  Adjusted model, R2 = .668
Respiratory rate -.002   .266
Weight .001   .965
PtcCO2 .016   <.001
  Adjusted model, R2 = .866
Respiratory rate .002   .395
Weight .001   .936
PaCO2 .019   <.001