Realist synthesis of factors affecting retention of staff in UK adult mental health services

Objectives: The shortage of healthcare staff is a global problem. UK mental health services have, on average, a higher turnover of staff than the NHS. Factors affecting retention of this staff group need to be explored in more depth to understand what is working for whom, for what reasons and in what circumstances. This review aims to conduct a realist synthesis to explore evidence from published studies, together with stakeholder involvement to develop programme theories that hypothesise how and why retention occurs in the mental health workforce and identify additional evidence to explore and test these theories thereby highlighting any persistent gaps in understanding. This paper develops programme theories that hypothesise why retention occurs and in what context and tests these theories thereby highlighting any persistent gaps in understanding.

Methods: Realist synthesis was used to develop programme theories for factors affecting retention of UK mental health staff. This involved: (1) stakeholder consultation and literature scoping to develop initial programme theories; (2) structured searches across six databases to identify 85 included relevant literature relating to the programme theories; and (3) analysis and synthesis to build and refine a final programme theory and logic model.

Results: Phase I combined findings from 32 stakeholders and 24 publications to develop six initial programme theories. Phases II and III identified and synthesised evidence from 88 publications into three overarching programme theories stemming from organisational culture: interconnectedness of workload and quality of care, investment in staff support and development and involvement of staff and service users in policies and practice.

Conclusions: Organisational culture was found to have a key underpinning effect on retention of mental health staff. This can be modified but staff need to be well supported and feel involved to derive satisfaction from their roles. Manageable workloads and being able to deliver good quality care were also key.