Figure 1. Multivariate logistic regression model and SHAP analysis of the model: A. Confusion matrix showing logistic models based on food frequency questionnaire parameters (features). B. Summary dot plot of the SHAP values for the FFQ-based logistic model, illustrating feature impact (top variables are the most influential to the model’s performance). C. Confusion matrix based on the DietCal variables estimated from the FFQ variables. D. Summary dot plot of the SHAP values for the DietCal based on the multivariate model.