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Linear regression analysis during two-lung ventilation of TCCO2 versus PaCO2 (above) and ET-CO2 vs. PaCO2 (below). Analysis of TC-CO2 vs. PaCO2 revealed r2 = 0.6280 and slope = 0.7650 0.1428 (95% confidence intervals: 0.4367 to 1.066). Analysis of ET-CO2 vs. PaCO2 revealed of = r2 = 0.05528 and slope = 0.1986 0.1883 (95% confidence intervals: -0.1956 to 0.5928)

Linear regression analysis during two-lung ventilation of TCCO2
versus PaCO2 (above) and ET-CO2 vs. PaCO2 (below). Analysis of TC-CO2 vs. PaCO2 revealed r2 = 0.6280 and slope = 0.7650  0.1428 (95% confidence intervals: 0.4367 to 1.066). Analysis of ET-CO2 vs. PaCO2 revealed of = r2 = 0.05528 and slope = 0.1986  0.1883 (95% confidence intervals: -0.1956 to 0.5928)