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. 2017 Dec 4;114(51):13513–13518. doi: 10.1073/pnas.1711464114

Fig. 4.

Fig. 4.

Comparison between ELISA- and TIDBIT-characterized concentrations of biomarkers. (A) Bland–Altman plot for the ferritin test. The orange line indicates a bias at +5.7 ng/mL (+12.7 pmol/L). Dashed line indicates cutoff at 15 ng/mL (32 pmol/L). (B) Bland–Altman plot for the RBP test. Since the assay gives only a quantitative result for RBP <25 μg/mL (1.19 μmol/L), only sample RBP <25 μg/mL (1.19 μmol/L) was compared. Green line indicates a bias at −0.05 μg/mL (−2.3 nmol/L). Dashed line indicates cutoff at 14.7 μg/mL (0.70 μmol/L). (C) Bland–Altman plot for the CRP test. Red line indicates a bias at +0.06 μg/mL (+2.4 nmol/L). Dashed line indicates cutoff at 3 μg/mL (120 nmol/L).