Regression coefficients for the influence of excess ligand on percent of Gd retained after three days. The coefficients are listed as estimate (standard error). The intercepts for the linear regression model (i.e., the base value altered by excess and GFR) are provided for completeness. The dependent variable is the percentage points for the retained fraction, excess is indexed as the percentage points of excess ligand in each simulation, and GFR is indexed in mL/min. The Akaike information criterion for the regression fit is 34.03.