Table 2 Operationalisation of core concepts in the review

The fundamentals of care are operationalised here as follows:

- Fundamental nursing interventions or activities focusing on physical (i.e., mobility, nutrition, personal care, etc.), psychosocial and relational fundamentals of care needs (i.e., patient involvement, information, emotional well-being, and dignity as well as supporting relatives) [5, 45]

Home- or facility-based care is operationalised here as follows:

- Healthcare delivered over prolonged periods of time in the community, either as home-based care (i.e., home health nursing) or facility-based care (i.e., nursing homes and/or residential aged care facilities (denomination for nursing homes in North America and Oceania) [46,47,48,49]

Continuity of care is operationalised after the World Health Organisation’s definition:

- ‘The degree to which a series of discrete healthcare events is experienced by people as coherent and interconnected over time and consistent with their health needs and preferences’ (p. 8) [50]

Here, key stakeholders are operationalised as follows:

- Older people (above 65 years), relatives and nurses

Nurses and/or nursing staff are operationalised as follows:

- Registered and auxiliary nurses (such as, but not limited to, registered nurses, nursing aides, healthcare assistants and personal support workers) [51, 52]

Nursing interventions are operationalised as follows:

- Distinctly articulated and defined nursing interventions and strategies (i.e., models of care, patient care pathways or clinical practice guidelines) with the objective of improving human health [53, 54]