Fig. 2From: Multiple cytokine analysis based on QuantiFERON-TB gold plus in different tuberculosis infection status: an exploratory studyThe levels of 10 cytokines in QFT-Plus TB1 antigen tubes with the levels in the corresponding Nil tubes subtracted in the ATB, LTBI, previous TB and HC groups. *P < 0.05, **P < 0.01, ***P < 0.001, ****P < 0.0001. Bars represent mean values, and error bars represent SDBack to article page