Evaluating the Relationship of GDF-15 with Clinical Characteristics, Cardinal Features, and Survival in Multiple Myeloma

Figure 2

Correlations between serum GDF-15 concentrations and involved serum free light chains (FLC) (a) and β2-microglobulin (b) in studied patients. Light circles represent patients with complete or partial remission (CR/PR), and dark circles represent patients without remission (stable disease or progressive disease, SD/PD). The right-skewed variables were transformed using the natural logarithm (ln) to enhance readability. The Spearman rank-order correlation coefficients () in the whole studied group and the subgroups are shown with associated values.

(a)

(b)