Figure 2 | Scientific Reports

Figure 2

From: Development and assessment of novel machine learning models to predict the probability of postoperative nausea and vomiting for patient-controlled analgesia

Figure 2

Variable contribution to models by SHAP Value. (A) Contribution of each feature value in one sample. (B) The SHAP value of the top 10 combination variables. The higher the SHAP value of a variable is, the more likely nausea and vomiting. The redder the color of the variable, the larger the value, and the bluer the color of the variable are, the smaller the value. SHAP SHapley Additive ExPlanation, History of motion sickness and/or PONV HisPONV, history of surgery HisSur, InfVol Infusion volume, UriVol Intraoperative urine volume, BMI Body Mass Index, PCA_3.0 PCA regimen 3 (sufentanil, nonsteroidal anti-inflammatory drugs in the analgesic pump).

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