Figure 1From: Plasma cytokine profiles in systemic sclerosis: associations with autoantibody subsets and clinical manifestationsGender effects on plasma cytokine levels. Male healthy controls have higher circulating levels of IL-2 (P = 0.008), IL-5 (P = 0.01) and IL-8 (P = 0.01), and lower circulating levels of IL-13 (P = 0.03) and IL-23 (P = 0.006). Plasma cytokine levels (in pg/ml) were log n -transformed. Data presented as mean ± standard error of the mean.Back to article page