ALB and delirium: Covariate adjusted logistic regression analysis in the subgroup of only CAM-ICU positive patients showed that an increase of one unit in Anttila-Index was associated with a SOFA, mechanical ventilation, age and albumin adjusted OR of 1.70 (95% CI 1.21–2.51, p = 0.004) for developing delirium lasting 5 days or more.