S100A8 and acute lymphoblastic leukemia: The sJIA group showed a significantly higher S100A8 expression level than the control group (440,520±261,210 vs 74,551±48,372 pg/mL, P=0.000) but showed no significant difference compared to the SIF group (372,050±137,260 pg/mL, P=0.304), KD group (275,670±99,822 pg/mL, P=0.053), and ALL group (334,540±151,780 pg/mL, P=0.100).