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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