Figure 3 | Scientific Reports

Figure 3

From: Clinical thresholds for diagnosing iron deficiency: comparison of functional assessment of serum ferritin to population based centiles

Figure 3

Median spline, scatterplot, and smoothed quantile regression based on 2-degree fractional polynomial models of the correlation between ferritin result values and mean corpuscular volume (MCV) values. Results for females plotted on top, and results for males plotted on bottom for the three age groups, 2–4, 5–12, and 13–18 years.

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