Coefficients (mean ± SD) for the metabolites selected 10 times in the 10-CV logistic elastic regression. Mean and SD of the set of 13 metabolites selected the 10 times in the 10-CV elastic logistic regression procedure (using lambda.1se) employing the whole dataset of subjects. Metabolites with negative coefficients (m = 4) are plotted in the left part, whereas those with positive coefficients (m = 9) are shown in the right part. Abbreviations: CE, cholesteryl ester; CV, cross-validation; DMGV, α-keto-δ-(N(G),N(G)-dimethylguanidino)valeric acid; PC, phosphatidylcholine; TAG, triglyceride.