Bridging Western and Indigenous Knowledge to Promote Safe Birth in Cultural Safety in Guerrero, Mexico.Sarmiento, Ivan.
Background Indigenous women in Guerrero, Mexico, face poor maternal health outcomes. They live at or beyond the periphery of the Western health system, where health services often lack human and financial resources. For several centuries, traditional midwives accompanied women through motherhood in these communities, but the colonial history and modern economic development have weakened their role in safe motherhood. Mutual mistrust between Western providers and traditional midwives hampers collaboration that could afford indigenous women the best of both worlds. The consequence for indigenous mothers is low-quality Western health care services and attenuated traditional resources. Interventional studies have explored assimilating birth attendants into the Western system, but not much research has focused on supporting traditional midwifery. Objectives This thesis explores the role of authentic traditional midwives in promoting safe birth in cultural safety among indigenous communities of Guerrero, Mexico. It has several specific objectives: 1.Understand how traditional midwives and intercultural researchers contextualise safe birth in local indigenous cultures; 2.Test the impact of supporting traditional midwives, in their own terms, in a cluster randomised controlled trial; 3.Reflect on generalisable implications of the evidence and engagement in these settings. Methods This doctoral project applied a participatory research approach and was part of a bigger initiative in partnership with academics at the Centro de Investigación de Enfermedades Tropicales and four indigenous groups in Guerrero (Nahua, Na savi (Mixteco), Me'phaa (Tlapaneco), and Nancue ñomndaa (Amuzgo)). Specific objective 1: I used a synthesis procedure based on fuzzy cognitive mapping (FCM) to collate knowledge of 29 traditional midwives about risk and protective factors for maternal health in their communities. In a second application of FCM, I explored the perspectives of eight intercultural Western researchers on factors affecting maternal health in indigenous communities. These maps served to develop a method based on Harris' discourse analysis to weight factors' influence based on their frequency. I used FCM to portray a scoping review of studies reporting influences on maternal health in indigenous communities with traditional midwives in the Americas and adapted the Weight of Evidence technique to ground the literature in local stakeholder perspectives. Specific objective 2: I analysed a parallel-group non-inferiority cluster randomised controlled trial (RCT) that tested whether supporting traditional midwives on their own terms increased cultural safety (respect of indigenous traditions) without worsening maternal health outcomes. In forty communities in two intervention municipalities, traditional midwives and their apprentices received a monthly stipend and support from a trained intercultural broker, and local official health personnel attended a workshop for improving attitudes towards traditional midwifery. Forty communities in two control municipalities continued with usual health services. Specific Objective 3: I described and reflected on the experience in Guerrero in support of cultural safety and intercultural dialogue to inform future practice of intercultural research. The project received ethical approval from the participating communities, the Universidad Autónoma de Guerrero, and McGill's Faculty of Medicine Institutional Review Board. Results Specific objective 1: For traditional midwives, the strongest risks for maternal health were not following traditional self-care practices, traditional diseases, and women's mental health and experience of violence. The strongest protectors were male involvement, support of traditional healers, and protective rituals. Participating researchers shared attitudes of respect for indigenous traditions and assigned indigenous cultural continuity and cultural safety the strongest positive influence on maternal health. Operator-independent weighting, based on Harris' discourse analysis, produced similar results to participant-weighting of influences. Most of the 87 selected studies in the scoping review focussed on access to Western health care, and they included a wide variety of practitioners described as traditional midwives. In the map produced from the findings of the scoping review, self-care practices and traditional midwifery had the strongest positive effects on maternal health, followed by the negative effect of disempowerment of communities, families and women. The literature, traditional midwives and researchers all identified promotion of cultural practices as important to protect Indigenous maternal health. Specific objective 2: Among 872 births, mothers in intervention communities had lower rates of perinatal deaths or childbirth or neonatal complications (Risk Difference (RD) -0.06 95% Confidence Intervals (CI) -0.11- -0.01) and more births at home with a traditional midwife and family present (RD 0.10 95%CI 0.02-0.18). Among institutional childbirths, women from intervention communities had more traditional management of the placenta (RD 0.34 95%CI 0.21- 0.48) but also more non-traditional cold-water baths (RD 0.10 95%CI 0.02-0.19). Specific objective 3: Three steps contribute to intercultural dialogue: (1) trust building and partnership, (2) listening and adjusting lexicon to identify contributions from traditional midwives and (3) codesign, evaluation and discussion to identify benefits of supporting traditional practices. Conclusions Traditional midwives have detailed knowledge of what affects maternal health that complements published research and can inform culturally safe interventions in their communities. This thesis developed an approach and specific tools to facilitate intercultural dialogue between stakeholders with differing perspectives. To my knowledge, the cluster RCT was the first published trial to test the impact of supporting traditional midwifery rather than replacing it. It confirmed non-inferior maternal health outcomes with more births at home with a traditional midwife and family present. The experience provides a starting point for advancing collaboration with traditional midwives to promote maternal health in indigenous communities.