Are diabetes self-management interventions delivered in the psychiatric inpatient setting effective? A protocol for a systematic review

Introduction: Diabetes is a major risk factor for cardiovascular disease, which is the most significant contributor to increased mortality due to natural causes in those with severe mental illness (SMI). Self-management interventions for diabetes have been shown to be effective in the general population, however, effects of these interventions in those with SMI is still unclear. Psychiatric admission could be used opportunistically to deliver interventions of this kind and help improve diabetes self-management. This review aims to assess whether interventions of this kind improve diabetes outcomes and have an effect on reducing cardiovascular risk.

Methods and analysis: This review will include studies assessing diabetes self-management interventions designed to be delivered to those aged 18 and over with comorbid type 2 diabetes and SMI during admission to psychiatric inpatient settings. Databases including the Cochrane Library, Medline, Psychinfo, CINAHL, Embase, WHO's International Clinical Trials Registry Platform, International Health Technology Assessment Database, UK Clinical Research Network and ClinicalTrials.gov will be searched from inception to September 2022. Where possible, meta-analysis of included studies will be conducted. If heterogeneity is high and meta-analysis is not possible, we will use other means of data synthesis and will include a narrative description of included studies.

Ethics and dissemination: Ethical approval is not required as the systematic review will only include data from existing studies. The results will be disseminated via peer-reviewed publication and presentation at relevant national and international conferences.

Prospero registration number: CRD42022357672.