"Interventions involving own treatment choice for people living with coexisting severe mental illness and type 1 or 2 diabetes: A scoping review".

Zabell, Vicki; Rønne, Sabrina Trappaud; Høgsgaard, Ditte; Jørgensen, Rikke; Gaede, Peter Haulund; Arnfred, Sidse Marie

The objective of this scoping review was to summarize, understand, and provide an overview of the empirical literature on interventions involving own treatment choice for people with co-existing diabetes (type 1 and 2) and severe mental illness. This scoping review, undertook a systematic literature assessment. Searches were performed in MEDLINE, Embase, PsycINFO Web of Science, Cinahl, the Cochrane Library, and in the gray literature (OpenGrey, Google Scholar, and Danish Health and Medicine Authority databases). Publications from 2000 to July 2020 were of interest. Studies were included if they involved the users' own choice of treatment. Included studies: RCT studies, intervention studies, cohort studies and cased based studies. A total of 4320 articles were screened, of which nine were included. The review identified eight studies from the U.S. and one from Canada testing different interventions for people with severe mental illness and diabetes (one diabetes education program, five randomized controlled trials, one retrospective cohort study, one naturalistic intervention program, and one case vignette). The interventions described in the nine articles involved service users, the majority incorporated individualized healthcare plans, and all interventions were based on multidisciplinary teamwork. Research in the area is limited. Care management interventions tend to focus on a single condition, paradoxically excluding severe mental illness during enrollment. Interventions aimed at people with both conditions often prioritize one condition treatment leading to an unbalanced care.