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Table 2 Relationships between measurement differences (|PaCO2-PtCO2 |) and patient characteristics using univariate and multivariate analysis (ANCOVA)

From: Erratum: Concordance and limits between transcutaneous and arterial carbon dioxide pressure in emergency department patients with acute respiratory failure: a single-center, prospective, and observational study

  Univariate analysis Multivariate analysis
Variable OR [95 % CIs] P-value OR [95 % CIs] P-value
Sex 1.61 [0.18, 14.25] .66   
Past medical history
Acute pulmonary 0.29 [0.03, 2.96] .29   
edema     
COPD 0.60 [0.06, 6.18] .67   
Ischemic heart 0.75 [0.06, 8.91] .82   
disease     
Home oxygen 1.01 [0.06, 16.77] .99   
Heart rate 0.98 [0.94, 1.03] .40   
Systolic blood 1.01 [0.97, 1.05] .60   
pressure     
Diastolic blood 0.97 [0.91, 1.03] .33   
pressure     
Respiratory rate 1.01 [0.88, 1.18] .85   
Temperature 2.45 [0.93, 6.49] .07 3.01 [1.16, 7.80] .03
PaCO2 1.05 [1.00, 1.12] .06 1.06 [1.00, 1.12] .05
PtCO2 1.06 [1.00, 1.13] .06   
PaO2 1.21 [1.01, 1.45] .04 1.22 [1.02, 1.47] .03
HCO3 0.96 [0.80, 1.15] .64   
Base excess 0.96 [0.82, 1.12] .60   
Lactate 1.44 [0.43, 4.79] .54   
Hemoglobin 1.20 [0.74, 1.95] .45   
White blood cells 0.91 [0.74, 1.12] .38   
C-reactive protein 1.00 [0.99, 1.01] .72   
Glycemia 4.70 [0.62, 35.58] .13   
Brain natriuretic 1.00 [1.00, 1.00] .82   
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