Figure 1
From: Factors regulating Hb F synthesis in thalassemic diseases
Negative correlation between total Hb content and Epo level in iron-deficient patients. The logarithm of the Epo level plotted against the corresponding total Hb content of each patient is denoted by a blue square. The linear regression (solid line) fitting the data is described by the following equation: log [Epo] = 4.78–0.33 [Hb]. The correlation coefficient r is -0.74.