Table 2: Mean ± SD values of B-cell activating factor (BAFF), interleukin-6, -10, and -15 (IL-6, -10, and -15), C-reactive protein (CRP), beta-2 microglobulin (B2M), Ki-67 proliferation index (Ki-67 PI), and plasma cell infiltration among International Staging System multiple myeloma stages ( for B2M, for the other cases).

Stage IStage IIStage III

BAFF (pg/mL)498.5 ± 187.0813.7 ± 398.31365.4 ± 641.5
IL-6 (pg/mL)3.0 ± 1.26.2 ± 3.216.7 ± 8.5
IL-10 (pg/mL)126.1 ± 26.0150.3 ± 29.6232.1 ± 91.9
IL-15 (pg/mL)7.2 ± 1.27.7 ± 1.213.4 ± 6.4
CRR (mg/dL) 0.6 ± 0.30.9 ± 0.61.2 ± 0.7
B2M (mg/L)1.8 ± 0.74.1 ± 3.57.4 ± 1.6
Ki-67 PI (%)4.0 ± 2.47.1 ± 5.216.5 ± 14.6
Infiltration (%)26.1 ± 10.839.4 ± 16.555.6 ± 14.6