Comparison of BMD values for the mutagenicity and DNA damaging effects induced by TEMPO and its derivatives. The BMD (BMD5, BMD10, BMD50, BMD100, and BMD200) estimates producing a 5%, 10%, 50%, 100%, or200% increase in the background responses were calculated using Hill model of PROAST with covariate analysis approach. Top panel, treatments without S9 in the MLA; middle panel, treatments with S9 in the MLA; bottom panel, data from the Comet assay. The bars represent the calculated lower and upper 95% CI of each value.