Fig. 2

(A) Illustration of the SYNTAX score. (B) Coefficient plot of the 9 predictors preliminarily selected by LASSO regression. The coefficient corresponding to a variable represents the effect of a unit change in that variable on the outcome event (MACE). A positive value indicates a positive correlation (risk factor), while a negative value indicates a negative correlation (protective factor). (C) LASSO coefficient profiles of the 56 candidate predictors. (D) A coefficient profile plot against the log (Lambda) sequence. A vertical line indicates the value selected using tenfold cross-validation, where the optimal Lambda resulted in 7 predictors with non-zero coefficients (Lambda = 0.0396).