As revealed already by MRMR algorithm analysis, a closer look at the decision-making basis of our decision tree proves the importance of IL-6 (> 1.98 pg/ml) and suPar (> 2.1 ng/ml) within our supervised learning approach – both markers have been shown to be significantly altered within the endometriosis group even in our preceding univariate analysis. Here, IL6 is linked to endometriosis.