Mortality Prediction Using SaO₂/FiO₂ Ratio Based on eICU Database Analysis

Figure 7

P/F partial dependence plot. The y-axis on the left reflects the probability of death as a positive value denotes a higher probability. The y-axis on the right shows the color scale of the value of S/F, which is superimposed upon the P/F plot. The x-axis demonstrates the S/F value. As P/F decreases, the probability of death increases. Probability of death appears to rise significantly below a P/F value of 200. S/F and P/F demonstrate a strong correlation, with both the quantitative value and changes in the probability of death. P/F: PaO₂ and FiO₂ ratio; S/F: SaO₂ and FiO₂ ratio.