Fig. 3
From: Evaluation of fasting plasma insulin and proxy measurements to assess insulin sensitivity in horses
Relative difference Bland-Altman plots where test and retest values are divided by their means and expressed as percentage are plotted against their means for fasting indices for β-cell response: FI, fasting insulin concentration (a); MIRG, modified insulin-to-glucose ratio (b); HOMA-β, homeostatic model assessment of β-cell function (c) and for insulin sensitivity: 1/insulin (d); RISQI, reciprocal of the square root of insulin (e); QUICKI, quantitative insulin sensitivity check index (f). The blue dotted line represents limits of agreement and the dashed red line represents the bias for repeated measures