3 Modelling Simple Toxicity Endpoints …
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Table 3.1
Performance of EC3 prediction model when compared against an internal test set of 45 chemicals, and an external proprietary test set containing
103 chemicals donated by Lhasa Limited members
ECETOC classification
GHS classification
Overpredicted (%) Correctly predicted
(%)
Underpredicted (%) Overpredicted (%) Correctly predicted
(%)
Underpredicted (%)
Public test set
33.3
51.1
15.6
24.4
64.4
11.1
Proprietary test set 45.6
36.0
18.4
25.2
64.1
10.7