“…Therefore, psychiatric (and somatic) hospitals have seen a considerable increase in dementia-related symptoms like delirium, depressive and delusional syndromes, aggression, tendency to walk off, and reversal of day-night rhythm (Azermai, 2015; Kolbeinson & Jónson, 1993; Lundberg, Gustafsson, Meagher, & Munk-Jørgensen, 2014). A recent study found a period prevalence of 18.6% of psychiatric inpatient cases (> 64 years) with dementia as their main diagnosis (F00, F01, F03) based on routine data from a sample of 35 specialist hospitals, university hospitals, and psychiatric departments (Löhr, 2014). In somatic inpatient settings, patients with dementia play an important role, too, with prevalence rates between 12.3–48.8%.…”