Nevertheless, C1qC has the highest discriminatory power relative to IL-6, and TNF-α with a sensitivity of 0.82 (95%CI, 0.65–0.93) and specificity of 0.89 (95%CI, 0.74–0.97) in distinguishing TB from non-TB pleurisy (Fig. 6B). This evidence concerns the gene IL6 and tuberculosis.