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. 2022 Jun 6;5:68. doi: 10.1038/s41746-022-00612-x

Fig. 5. Feature inspection for intrapartum based on SHAP value.

Fig. 5

a SHAP summary plot for top 20 clinical features for PE prediction shows the SHAP values for the most important features from gradient boosting model in the training data. Features in the summary plot (Y-axis) are ordered by the mean absolute SHAP values (in the parenthesis after each feature name), which represents the importance of the feature in driving the intrapartum PE prediction. Values of the feature for each patient are colored by their relative value with red indicating high value and blue indicating low value. Positive SHAP values indicate increased risks for intrapartum PE and negative values indicate protective effects to intrapartum PE. b The average feature group contribution calculated from averaging mean absolute SHAP values for each feature set. c The dependence plot with maximum SBP measured in antepartum versus PE relative risk, along with the interaction of African American race. The plot shows how different values of the feature can affect relative risks and ultimately impact classifier decision. Data points are colored by the African American race. The solid line represents the mean of SHAP values.