Table 1.

Eligibility criteria

Criteria	Inclusion	Exclusion
Population: care homes providing care for older adults	Care homes providing care for older adults defined as such by the authors (e.g. elders, older people, older adults)	Evidence focussing on care homes that provide care exclusively for people who are under the age of 65
Concept: co-production	Studies that explicitly state co-production, co-creation or co-design were used. The original authors’ assessment of the approach used was the basis for inclusion because we were interested in studies that had consciously set out to apply these approaches, and due to the variation in how these terms are conceptualised and operationalised in the literature, as described in the background to this review	Evidence focussing on involvement, engagement, or consultation of older care home residents or care staff without specific reference to co-production, co-creation or co-design
Concept: global care home settings	Research conducted in residential or nursing care home settings in any country	Research conducted in settings which do not provide permanent, 24-h personal care and support (for example home care, retirement communities, assisted-living, intermediate care or hospital-based settings)
Types of literature	Peer-reviewed primary studies using any quantitative or qualitative methods were included	Editorials, opinion pieces, protocols, systematic reviews and grey literature
Language	English language	Non-English languages
Date	Any year of publication	None