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. 2018 Jun 28;126(6):067009. doi: 10.1289/EHP3368

Figure 2.

Flowchart showing identification and curation of chemical RfD values and automated workflow for probabilistic dose-response assessment.

Overview of curation of toxicity values and probabilistic dose–response workflow. Blue boxes relate to the identification, curation, and extraction of chemical reference doses (RfDs); orange boxes relate to the automated workflow for replacing RfDs with probabilistic dose-response estimates. Note: The number of probabilistic dose-response estimates (1,522) exceeds the number of endpoints-specific RfDs (1,464) because some RfDs did not specific whether a continuous or dichotomous endpoint was used, so both possibilities were evaluated in the probabilistic approach (see Figure 3B). CI, Confidence Interval; POD, Point of Departure; UF, Uncertainty factor; HDMI, Human dose associated with an effect of magnitude M and population incidence I.