Comparison of VIDAS and Radioimmunoassay Methods for Measurement of Cortisol Concentration in Bovine Serum

<table>Comparison between the VIDAS assay and the RIA reference method for cortisol serum concentration (nmol/L) in 40 cows Bland-Altman plot. The solid line indicates the mean of difference, and dashed lines indicate limits of agreement, which are defined as the mean difference plus and minus 1.96 times the standard deviation of the differences.</table>

The Scientific World Journal

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Figure 1

Figure 1: Comparison of VIDAS and Radioimmunoassay Methods for Measurement of Cortisol Concentration in Bovine Serum 