Table 1.

Review criteria

	Inclusion criteria
	Synthesis 1: consequences of caring	Synthesis 2: interventions for carers
Population	Carers (eg, unpaid, family, ‘informal’) of older adults. No age criteria for care recipients are specified, but must be, or likely to include, older populations (eg, people with dementia). Carers include people of all ages, male and female. Care recipients (ie, older adults) include male and female, with any medical diagnosis, impairment, disability or frailty, and no limits to ethnicity. Setting—care provided in the community, hospital, care home.
Intervention	Not applicable.	Any carer intervention that is targeted only on the carer (ie, not a joint carer and care recipient intervention) and which aims to improve carers’ health, well-being and/or access to services.
Comparator	No comparator, or non-carers.	Any or no comparator, including usual care.
Outcome	Health status, quality of life, well-being, incident ill health, admission to hospital, financial well-being, poverty, measured changes in material circumstances, social relationships including loneliness, isolation, social support, social networks.
Study design	Systematic reviews (those that meet 3 of 5 DARE criteria). Publication dates 2000–2019. If more recently published systematic reviews include evidence that is also in earlier reviews, the most recent reviews will be prioritised to avoid duplication. English language publications.

DARE, Database of Abstracts of Reviews of Effects.