Social interactions of persons with dementia living in special care units in long-term care: A mixed-methods systematic review.

Although the evidence base is increasing, it is still fragmented and built on different concepts, interventions, control groups and measurements. Nevertheless, the first conclusions suggest a positive impact of special care units on residents' social interactions. Although the review yielded a more comprehensive picture of residents' social life, further high-quality research built on a sound theoretical background is needed.