EtCO2 feature | Non-intubated (n=29) | Intubated (n=10) | p Value | AUC (95% CI) |
---|---|---|---|---|
Median (kPa) | 3.2 (2.6–4.2) | 4.7 (3.3–8.4) | 0.05 | 0.71 (0.46–0.90) |
IQR (kPa) | 1.2 (0.99–1.7) | 2.3 (1.4–4.2) | 0.02 | 0.75 (0.55–0.92) |
Line: intercept (kPa) | 2.3 (1.5–3.5) | 1.9 (1.0–3.7) | 0.728 | 0.54 (0.30–0.77) |
Line: IQR (kPa) | 0.93 (0.70–1.6) | 0.58 (0.45–0.79) | 0.008* | 0.79 (0.61–0.94) |
Line: slope (kPa) | 0.24 (0.03–0.54) | 0.41 (0.00–0.85) | 0.417 | 0.60 (0.36–0.81) |
*Statistically significant at the p<0.01 level.
AUC, area under the operating characteristic curve.