Delirium is a potential emergency with serious consequences. Little attention has been paid to residents of nursing homes, although they are at extreme risk for developing delirium. Health Care Professionals (HCPs) such as nurses and general practitioners are assumed to know little about delirium in nursing homes.

The German project DeliA (delirium in nursing homes) comprises three sub- studies and two reviews. The sub-studies have the following objectives: (1) to determine the prevalence of delirium and its sub-types in German nursing homes; (2) to describe and assess the quality of delirium care practices (prevention, diagnosis, therapy) of HCPs in nursing homes; and (3) to develop a Technology Enhanced Learning (TEL) to increase the delirium- specific knowledge of HCPs in nursing homes. The reviews aim to (a) summarize the prevalence of delirium reported in international studies and (b) to find out how, why and under what context education for HCPs in nursing homes works.

A systematic review of the reported prevalence of delirium in nursing homes will be conducted (a). The prevalence study (1) will assess delirium and its proposed associated factors in at least 50 nursing homes using validated measurements. Medication schedules of participating residents will be analyzed to determine potential for delirium. To describe current practice, process-oriented semi-structured guided interviews will be conducted with 30 representatives of the (nursing home) medical service and the nursing service of nursing homes (2). As a theoretical basis for the TEL, a realist review will be conducted to understand the active ingredients of educational interventions and to develop an initial program theory (b). The curriculum for the proposed TEL will be developed based on a synthesis of existing curricula and evaluated by Delphi experts for relevance, comprehensiveness, and content. A final feasibility study will assess the potential increase in knowledge about delirium among HCPs (n = 50) in nursing homes (3).

It is expected that the project and the dissemination of its findings will raise awareness among HCPs and the public about delirium in nursing homes. The developed TEL and its underlying program theory will be further tested.