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. Author manuscript; available in PMC: 2014 May 1.
Published in final edited form as: Pediatr Res. 2013 Sep 3;74(5):592–600. doi: 10.1038/pr.2013.143

Figure 3.

Figure 3

Bland-Altman plots of RCV relative to the reference BioRBC density compared to: (a) BioRBC 18 μg/ml, (b) BioRBC 54 μg/ml, (c) BioRBC 162 μg/ml, (d) Kidd-Jkb, (e) HbF flow cytometry, and (f) HbF HPLC. The mean ratio of RCVs (solid line), 95% CI (dashed line), and ratio = 1.0 (dotted line) are shown. With the exception of (f) in which HbF HPLC significantly overestimated the limits of agreement for RCV (i.e., the area between the two dashed horizontal lines), all other plots demonstrated good agreement relative to the reference BioRBC density. The triangle data points in panels (d)-(f) indicate the single outlier data point.