Table 1.

PICO

Sample	People of any age and gender who have a close relative with dementia (regardless of where they reside)
Phenomenon of interest	Proxy decision-making about a healthcare treatment
Design	Any qualitative primary, empirical research
Evaluation (outcomes)	Experiences, support needs, barriers, facilitators of family/informal carers making proxy decisions about healthcare treatment for a relative with dementia

PICO, Population, intervention, comparison, outcome.