Figure 2. Scatterplots between dietary NaCl and lithogenic parameters in stone formers (SF) (● ―) and non-SF (○- - -). A Urinary calcium: SF r = 0.41 (p<0.001) non-SF r=0.54 (p=0.001) / B Urinary uric acid: SF r=0.69 (p<0.001) non-SF r=0.47 (p=0.003) / C Urinary oxalate: SF r=0.52 (p<0.001) non-SF r=0.31(p=0.16).