IL6 and cystic fibrosis: Significant increases (paired t tests) in median values were observed for CF induced IFN γ (pre- 4.30±0.51; post 5.19±0.55; p = 0.038); CF induced IL-10 (pre- 5.25±0.20; post 6.07±0.14; p = 0.001) and CF induced IL-6 (pre- 7.40±0.17; post 7.77±0.15; p = 0.006).