a trend toward significancep = 0.091
Lymphoid cell and follicle quantification and localization in end-stage CF lung tissue Both cytotoxic T cell (CD8) and CD4 T cell counts were significantly increased in CF tissue compared to controls ( p < 0.001 and p = 0.007, respectively), whereas the slightly increased B cell counts in CF showed only a trend toward significance ( p = 0.091 versus control) (Table 3 , Fig. 2 ).