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Table 1 Number of chemicals included in the TS and the ES for each toxicity class

From: SAR and QSAR modeling of a large collection of LD50 rat acute oral toxicity data

  Training set (TS) Evaluation set (ES)
# Class 1 Class 2 Class 3 Class 4 Class 5 # Class 1 Class 2 Class 3 Class 4 Class 5
LD50 6279 2169
vT 8462 703 7759 2888 242 2646
nT 8402 4779 3623 2884 1651 1233
EPA 8259 703 1806 4142 1608 2859 242 643 1421 553
GHS 8331 165 538 1089 2916 3623 2879 58 184 391 1013 1233
  1. Hazard categories for the two multi-class modeled endpoints (EPA and GHS classes) are sorted for decreasing toxicity, from 1 to 5. For the vT classification, class 1 corresponds to the positive (i.e., very toxic) compounds, while for the nT endpoint class 1 corresponds to the negative (i.e., toxic) compounds