Nursing interventions to improve care of people living with dementia in hospital: A mixed methods systematic review

There are growing numbers of people living with dementia being admitted to acute care hospitals. Hospitalization for people living with dementia can be difficult and is often associated with negative outcomes. Nurses play a significant role in shaping the hospital experience of people living with dementia, and there have been efforts to design, implement and evaluate interventions to improve nursing care of people living with dementia. To synthesize evidence on the effectiveness of, and experiences with, nursing interventions to improve care of hospitalized people living with dementia. Mixed methods systematic review following the JBI convergent segregated approach to synthesis and integration of findings. The quantitative component considered studies that evaluated nursing interventions to improve the care of people living with dementia in hospital, comparing the intervention to usual care, other therapeutic modalities, or no comparator. The qualitative component considered studies that explored the experiences of nursing interventions from the perspectives of people living with dementia, caregivers, and nurses. A total of 8 databases were used to search for published and unpublished studies. Titles, abstracts, and full text selections were screened by two or more independent reviewers and assessed for methodological quality. A total of 38 studies were included in the review, 24 quantitative, 9 qualitative and 5 mixed method designs. Critical appraisal scores were moderate. All studies regardless of methodological quality were included in the review. Interventions were grouped as principally related to 1) dementia education for nurses, 2) technology, 3) nursing skills, and 4) physical environment. Outcomes are presented related to health outcomes of people living with dementia; nurses' knowledge, confidence, and self-efficacy; and health system outcomes. As the interventions were heterogeneous, a meta-analysis of quantitative findings was not possible. The qualitative analysis incorporated 60 findings from 12 studies and led to nine categories and two synthesized findings recognizing external influences on nurses practice with people living with dementia and the importance of interventions to humanize nurses' work with people living with dementia. Integration of the quantitative and qualitative results demonstrate the need to recognize the role of organization- and unit-level factors in the design and implementation of effective interventions. There is limited high-quality evidence to demonstrate the effectiveness of interventions to improve nursing care of people living with dementia in hospital. Using approaches to intervention design and implementation that draw on models of behavior change and learning health systems may support effective change. PROSPERO 2021CRD42021230951.