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Low dose risk estimation via simultaneous statistical inferences

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The paper develops and studies simultaneous confidence bounds that are useful for making low dose inferences in quantitative risk analysis. Application is intended for risk assessment studies where human, animal or ecological data are used to set safe low dose levels of a toxic agent, but where study information is limited to high dose levels of the agent. Methods are derived for estimating simultaneous, one-sided, upper confidence limits on risk for end points measured on a continuous scale. From the simultaneous confidence bounds, lower confidence limits on the dose that is associated with a particular risk (often referred to as a bench-mark dose) are calculated. An important feature of the simultaneous construction is that any inferences that are based on inverting the simultaneous confidence bounds apply automatically to inverse bounds on the bench-mark dose.

Keywords: Bench-mark dose; Environmental risk assessment; Non-quantal dose–response; Simultaneous confidence bands; Simultaneous inference

Document Type: Research Article


Affiliations: 1: University of South Carolina, Columbia, USA 2: National Ocean Service, Charleston, USA 3: National Center for Toxicological Research, Jefferson, USA

Publication date: 2005-01-01

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