Figure 2From: Body composition and arsenic metabolism: a cross-sectional analysis in the Strong Heart Study Multivariate associations of body mass index and % arsenic species in urine using Dirichlet regression. The % arsenic species (% iAs, % MMA and % DMA) lie on a simplex. As body mass increases, overall metabolism shifts to greater % DMA, and the metabolism profiles are less heterogeneous across individuals within the same body mass index stratum.Back to article page