Implementation of link workers in primary care: Synopsis of findings from a realist evaluation.

Background: Social prescribing link workers formed part of the Additional Roles Reimbursement Scheme introduced into primary care in England from 2019. Link workers assist patients experiencing issues affecting their health and well-being that are 'non-medical' (e.g. lack of social connections, financial difficulties and housing problems). They give patients space to consider these non-medical issues and, when relevant, connect them to support, often within the voluntary-community-social-enterprise sector. We conducted an earlier realist review on the link worker role in primary care. We then carried out a realist evaluation, described in this report, to address the question: When implementing link workers in primary care to sustain outcomes - what works, for whom, why and in what circumstances?

Aim: To develop evidence-based recommendations to optimise the implementation of link workers in primary care and to enable patients to receive the best support possible.

Design: A realist evaluation, involving two work packages.

Setting: Data were collected around seven link workers in different parts of England.

Methods: For work package 1, researchers spent 3 weeks with each link worker - going to meetings with them, watching them interact with patients, with healthcare professionals and with voluntary-community-social-enterprise staff. During this time, researchers had a daily debrief with the link worker, inviting them to reflect on their working day, and they collected relevant documents (e.g. job descriptions and information on social prescribing given to patients). They also conducted interviews with 93 primary care/voluntary-community-social-enterprise staff and 61 patients. As part of this work package, data on patient contact with a general practitioner before and after being referred to a link worker were collected. Work package 2 consisted of follow-up interviews (9-12 months later) with patients; 41 were reinterviewed. In addition, link workers were reinterviewed. A realist logic of analysis was used to test (confirm, refute or refine) the programme theory we developed from our realist review. Analysis explored connections between contexts, mechanisms and outcomes to explain how, why and in what circumstances the implementation of link workers might be beneficial (or not) to patients and/or healthcare delivery.

Results: We produced three papers from the research - one on link workers 'holding' patients, one on the role of discretion in their job, and another exploring patient-focused data and readiness to engage in social prescribing. Data from these papers were considered in relation to Normalisation Process Theory - a framework for conceptualising the implementation of new interventions into practice (e.g. link workers into primary care). By doing so, we identified infrastructural factors required to help link workers to: (1) offer person-centred care; (2) develop patients' self-confidence, sense of hope and social capital; (3) facilitate appropriate general practitioner use; (4) foster job satisfaction among those delivering social prescribing.

Discussion: Our research highlighted the importance of a supportive infrastructure (including supervision, training, leadership/management, clarity about the role, link workers' ability to use existing skills and knowledge and having capacity to connect with providers in the voluntary-community-social-enterprise sector) in order to produce person-centred care, to nurture hope, self-confidence and social capital among patients, to ensure they receive the right support (medical or non-medical), and to promote link workers' job satisfaction. Data showed how link workers can contribute to the offer of holistic care beyond a purely medical lens of health and illness.

Funding: This synopsis presents independent research funded by the National Institute for Health and Care Research (NIHR) Health and Social Care Delivery Research programme as award number NIHR130247.