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Table 2 The proportion of patients with community-acquired pneumonia with a rise in PtCO 2 from baseline after 60 minutes of high concentration or titrated oxygen therapy

From: The effect of high concentration oxygen therapy on PaCO2 in acute and chronic respiratory disorders

 

High concentration

Titrated

Relative risk

P value

 

n (%)

n (%)

(95% CI)

 

Change in PtCO2 ≥4 mmHg

36 (50%)

11 (14.7%)

3.4 (1.9 to 6.2)

<0.001

Change in PtCO2 ≥8 mmHg

11 (15.3%)

2 (2.7%)

5.7 (1.3 to 25.0)

0.007

  1. Reproduced with modification from reference [18].