Figure 5.

Samples from 68 cats that underwent treatment of hyperthyroidism by bilateral thyroidectomy, with symmetric dimethylarginine (SDMA) and creatinine measured concurrently both before and after surgery. In total, 151 data points plotted, some of which are repeated measures from the same cats. The dotted gridlines represent the reference ranges for creatinine (2.0 mg/dL, 177 μmol/L) and SDMA (14 μg/dL), respectively. Samples are categorized by tT4 concentration and lines of best fit plotted using intercept and slope generated from a generalized estimating equation