Fig. 4From: Leukocyte inflammatory phenotype and function in migraine patients compared with matched non-migraine volunteers: a pilot studyBoth CD4 + helper T cells and CD8 + killer T cells demonstrated lowered expression by mean fluorescence intensity (MFI) of integrin CD18, but not significantly. MFI of CD18 was lower in both CD4 + T cells and CD8 + T cells in migraineurs compared with controls, with p = 0.06 and p = 0.09, respectively. Data are represented as means ± SD, analysis was determined by nonparametric Wilcoxon signed rank testBack to article page