IL6 and delirium: Moreover, treatment of cells with serum samples from delirium patients and IL6 antibody prevented the production of IL12 in cell supernatant (Time point 1, delirium vs delirium + IL6 antibody; IL12: 20.6 ± 2.7 pg/ml vs 4.1 ± 2.1 pg/ml, p < 0.0001,), again with no differences between Time point 1 and Time point 2 (Figs. 1c, 4e, f).