Factors associated with the quality of life of people with dementia and with quality of life-improving interventions: Scoping review.

Objectives To synthesise current research exploring the factors and interventions associated with the quality of life of people with dementia. Background Dementia is a progressive condition affecting an estimated 40 million people worldwide. The illness has a significant impact on the lives of the persons affected and their loved ones, and may thus impair the quality of life of both. As it progresses, dementia weakens the patients' ability to express their own views about their quality of life and the factors associated with it. Design Scoping review. Data sources Electronic database search of MEDLINE, CINAHL, PsycINFO, Joanna Briggs Institute Library, Cochrane Database of Systematic Reviews, Database of Abstracts of Reviews of Effects (DARE), EMBASE, Medic published up to March 2016; and incremental hand search.

REVIEW METHOD: Systematic or other kinds of reviews and single studies were included for the review if they met the inclusion criteria.

RESULTS: A total of 20 reviews and 7 primary studies were retained for synthesis. Key findings were abstracted and a themes matrix was generated to identify patterns of meaning. The factors associated with the quality of life of people with dementia were sociodemographic factors, factors related to dementia and social and caring environment. Interventions supporting quality of life focused on the activation of people with dementia.

CONCLUSIONS: This scoping review identified a large body of knowledge exploring the factors and interventions associated with the quality of life of people with dementia. The interventions were heterogeneous and the sample sizes small, which is why more research is needed.