IL6 and infection: Coefficients (Β) using the optimal λ were calculated for the variables of the model: age (B = 0.05, SE: 0.01), admission GCS (B = −0.29, SE: 0.07), infection (B = 0.38, SE:0.55) and day-0 IL-6 (B = 0.05, SE = 0.005).