035). Increased 25OHD concentration was associated with a decrease in delirium prevalence (OR = 0.99 [95CI 0.98-0.99] per nmol/L of 25OHD, p = 0.038). The concentration distinguishing between cases and controls with the best sensitivity-specificity was found between 29.5 and 30.5 nmol/L. The regression models showed that delirium was associated…[Read more]