Diabetes self-care behaviours among people diagnosed with serious mental illness: A cross-sectional correlational study

What is known on the subject? People diagnosed with serious mental illness have a high risk of diabetes and are more likely to develop type 2 diabetes at ages below 60 years. Effective diabetes self-care behaviours among people diagnosed with serious mental illness can improve glycaemic control and reduce vascular complications. Few studies have investigated diabetes self-care behaviours and their associations with health literacy and self-efficacy in people diagnosed with serious mental illness.What the paper adds to existing knowledge? Diabetes self-care behaviours in people diagnosed with serious mental illness were suboptimal; the least frequently performed self-care activities were self-monitoring of blood glucose. Factors associated with diabetes self-care behaviours are gender, age, communicative and critical health literacy and self-efficacy. Self-efficacy is the strongest predictor of self-care behaviours among people diagnosed with comorbid serious mental illness and type 2 diabetes.What are the implications of practice? Mental health nurses should assess diabetes-specific health literacy of people diagnosed with serious mental illness to ensure that they possess the knowledge and skills related to diabetes self-care. When treating young people and those with newly diagnosed type 2 diabetes, nurses should incorporate strategies to minimise their perceptions of diabetes-related distress and increase their confidence in managing comorbid diabetes.