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Table 1 (abstract P091). Correlation and agreement between measured and estimated dead space values

From: 40th International Symposium on Intensive Care & Emergency Medicine

  Measured Estimated R2 Bias and limits of agreement
VD/VT 0.56 (±0.11) 0.61 (±0.14) 0.21 Bias= 0.05 (LOA= 0.21 – 0.31)
VDalv/VT 0.14 (±0.08) 0.3 (±0.12) 0.11 Bias= 0.17 ( LOA= -0.07 – 0.41)
Anatomical dead space fraction (VDanat/VT) 0.45 (±0.11) 0.34 (±0.06) 0.12 Bias= -0.11 (LOA= -0.33 – 0.11)
VCO2 208 (±66) 178 (±49) 0.39 Bias= -29.7 (LOA= -132 – 73)