“…(For subtyping, the delirium symptom interview was used, resulting in three different subtypes: hyperactive, hypoactive, and mixed (Liptzin and Levkoff, 1992). The Delirium Rating Scale-Revised-98 (DRS-R-98) was used to monitor the severity of delirium (Trzepacz et al, 1988;de Rooij et al, 2006).…”