Factors affecting health sector involvement in public policies addressing the social determinants of health : a critical realist case study of cash transfers in Ghana

In spite of the consistent evidence of cash transfers' (CTs) impact on the social determinants of health (SDoH) in low-and middle-income countries, and their potential for achieving health sector objectives, there is a growing concern that the health sector has not been actively involved in these programs. This study used a critical realist approach to examine the factors affecting health sector involvement in CTs in Ghana. In-depth semi-structured interviews were conducted with 20 health promoters comprising national policymakers, District Directors of Health Service, Regional/District Health Promotion Managers and health promotion academics between October 2017 and February 2018. Interviews were audio-recorded and transcripts were analysed using thematic framework analysis. In addition, policy documents concerning the Ghana CT program were reviewed. All the participants were aware of the CT program, but had limited or no involvement in it to date. The findings indicate that CTs' cross-cutting goals and health sector mandates and responsibilities constitute the key structures and powers with the potential to trigger a more substantive involvement of the health sector in the program. Factors found to shape health sector involvement in CTs included CT policymakers' understanding of the SDoH, national health sector leadership, evidence linking CTs to SDoH, intersectoral collaboration and politicisation of CTs. As CTs continue to adapt and expand across low-and middle-income countries, the findings from this study can help the health sector to take a more substantive role in the programs to optimise their impacts on the SDoH and health inequities.