Research Article
Evaluating the Relationship of GDF-15 with Clinical Characteristics, Cardinal Features, and Survival in Multiple Myeloma
Figure 4
Serum GDF-15 concentrations among studied patients according to eGFR values: >60 ml/min/1.73 m2 (), 30-60 ml/min/1.73 m2 (), and <30 ml/min/1.73 m2 () (a). Data are shown as median (horizontal line), interquartile range (box), nonoutlier range (whiskers), and outliers (points). Correlations between serum GDF-15 and cystatin C (b) and urine NGAL (c). Light circles represent patients with remission, and dark circles represent patients without remission. The right-skewed variables were transformed using natural logarithm (ln) to enhance readability. Spearman rank-order correlation coefficients () in the whole studied group and the subgroups are shown with associated values.
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