Background Group care (GC) improves the quality of maternity care, stimulates women’s participation in their own care and facilitates growth of women’s social support networks. There is an urgent need to identify and disseminate the best mechanisms for implementing GC in ways that are feasible, context appropriate and sustainable. This protocol presents the aims and methods of an innovative implementation research project entitled Group Care in the first 1000 days (GC_1000), which addresses this need. Aims The aim of GC_1000 is to co-create and disseminate evidence-based implementation strategies and tools to support successful implementation and scale-up of GC in health systems throughout the world, with particular attention to the needs of ‘vulnerable’ populations. Methods By working through five inter-related work packages, each with specific tasks, objectives and deliverables, the global research team will systematically examine and document the implementation and scale-up processes of antenatal and postnatal GC in seven different countries. The GC_1000 project is grounded theoretically in the consolidated framework for implementation research (CFIR), while the process evaluation is guided by ‘Realistic Evaluation’ principles. Data are gathered across all research phases and analysis at each stage is synthesized to develop Context-Intervention-Mechanism-Outcome configurations. Discussion GC_1000 will generate evidence-based knowledge about the integration of complex interventions into diverse health care systems. The 4-year project also will pave the way for sustained implementation of GC, significantly benefitting populations with adverse pregnancy and birthing experiences as well as poor outcomes.

Introduction Group Antenatal Care (GANC) is an alternative for traditional antenatal care. Despite the model is well accepted among participants and is associated with positive effects on pregnancy outcomes, recruitment of participants can be an ongoing challenge, depending on the structure and financing of the wider health system. This is especially the case for primary care organizations offering GANC, which depend on other health care providers to refer potential participants. The main objective of this study is to understand what determinants are at play for health care providers to refer to GANC facilitators in primary care organizations. Accordingly, we make recommendations for strategies in order to increase the influx of women in GANC. Methods Qualitative findings were obtained from 31 interviews with healthcare providers responsible for the referral of women to the GANC facilitators working in primary care organizations, GANC facilitators and stakeholders indirectly involved in the referral. The domains of the Consolidated Framework for Implementation Research (CFIR) and the Theoretical Domains Framework (TDF) helped to develop interview questions and raise awareness of important elements during interviews and thematic analyses. Results The findings show that before health care providers decide to refer women, they undergo a complex process that is influenced by characteristics of the potential referrer, GANC facilitator, woman, professional relationship between the potential referrer and the GANC facilitator, organization and broader context. Discussion Based on these findings and current literature, we recommend that the GANC team implements strategies that anticipate relevant determinants: identify and select potential referrers based on their likelihood to refer, select champions, invest in communication, concretise the collaboration, provide practical tools, involve in policymaking.

Background Antenatal psychosocial vulnerability is a main concern in today’s perinatal health care setting. Undetected psychosocially vulnerable pregnant women and their unborn child are at risk for unfavourable health outcomes such as poor birth outcomes or mental state. In order to detect potential risks and prevent worse outcomes, timely and accurate detection of antenatal psychosocial vulnerability is necessary. Therefore, this paper aims to develop a screening tool ‘the Born in Brussels Screening Tool (ST)’ aimed at detecting antenatal psychosocial vulnerability. Methods The Born in Brussels ST was developed based on a literature search of existing screening tools measuring antenatal psychosocial vulnerability. Indicators and items (i.e. questions) were evaluated and selected. The assigned points for the answer options were determined based on a survey sent out to caregivers experienced in antenatal (psychosocial) vulnerability. Further refinement of the tool’s content and the assigned points was based on expert panels’ advice. Results The Born in Brussels ST consists of 22 items that focus on 13 indicators: communication, place of birth, residence status, education, occupational status, partner’s occupation, financial situation, housing situation, social support, depression, anxiety, substance use and domestic violence. Based on the 168 caregivers who participated in the survey, assigned points account between 0,5 and 4. Threshold scores of each indicator were associated with adapted care paths. Conclusion Generalied and accurate detection of antenatal psychosocial vulnerability is needed. The brief and practical oriented Born in Brussels ST is a first step that can lead to an adequate and adapted care pathway for vulnerable pregnant women.