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Dose-Response Relationships from Epidemiology Used to Improve Risk Estimates
| Number of Annual Births at Risk | Clewell & Crump (2005) | Axelrad et al. (2007) | |
|---|---|---|---|
| Predicted Difference, Mean Test Score | Predicted Difference, Mean IQ | ||
| Maternal Hg, unexposed vs exposed at RfD | 60,000 (NRC 2000) | 0.25 % | 0.13 points |
| Maternal Hg, unexposed vs exposed at 99.8th percentile | 8,000 (Clewell & Crump 2005) | 1.6% | 0.82 points |
