Implementation framework for chronic disease intervention effectiveness in Maori and other indigenous communities.

BACKGROUND: About 40% of all health burden in New Zealand is due to cancer, cardiovascular disease, and type 2 diabetes/obesity. Outcomes for Maori (indigenous people) are significantly worse than non-Maori; these inequities mirror those found in indigenous communities elsewhere. Evidence-based interventions with established efficacy may not be effective in indigenous communities without addressing specific implementation challenges. We present an implementation framework for interventions to prevent and treat chronic conditions for Maori and other indigenous communities. THEORETICAL FRAMEWORK: The He Pikinga Waiora Implementation Framework has indigenous self-determination at its core and consists of four elements: cultural-centeredness, community engagement, systems thinking, and integrated knowledge translation. All elements have conceptual fit with Kaupapa Maori aspirations (i.e., indigenous knowledge creation, theorizing, and methodology) and all have demonstrated evidence of positive implementation outcomes. APPLYING THE FRAMEWORK: A coding scheme derived from the Framework was applied to 13 studies of diabetes prevention in indigenous communities in Australia, Canada, New Zealand, and the United States from a systematic review. Cross-tabulations demonstrated that culture-centeredness (p = .008) and community engagement (p = .009) explained differences in diabetes outcomes and community engagement (p = .098) explained difference in blood pressure outcomes. IMPLICATIONS AND CONCLUSIONS: The He Pikinga Waiora Implementation Framework appears to be well suited to advance implementation science for indigenous communities in general and Maori in particular. The framework has promise as a policy and planning tool to evaluate and design effective interventions for chronic disease prevention in indigenous communities.

Ngati and healthy: translating diabetes prevention evidence into community action.

INTRODUCTION: Type 2 diabetes mellitus (T2DM) is a major health issue in New Zealand Maori. Clinical trials have demonstrated potential for the prevention of T2DM, but whether community public health programmes aiming to prevent diabetes are effective is untested. OBJECTIVE: To describe the planning and design of an intervention aiming to translate T2DM prevention clinical trial evidence into a community-wide population health intervention in a high risk predominantly Maori community. APPROACH: Community concerns about the diabetes burden were heard by the local diabetes nurse, herself a tribal member, and discussed with a locally raised academic. Project planning ensued. The intervention and its evaluation were designed using a participatory community development model. The planned intervention had three components: community-wide health promotion initiatives conveying healthy lifestyle messages, community education and monitoring for identified high-risk individuals and their extended families, and a structural strategy aimed at adapting local environments to support lifestyle changes. The evaluation plan involved interrupted time series surveys coupled with formative and process evaluations rather than a randomised control trial design. DISCUSSION: Consulting communities, validating community concerns and prioritising cultural and ethical issues were key steps. Time spent developing good relationships amongst the health provider and academic research team members at the outset proved invaluable, as the team were united in addressing the project planning and implementation challenges, such as funding obstacles that arose because of our ethically and culturally appropriate non-randomised control trial evaluation design. The pre-intervention survey demonstrated high rates of diabetes (13%), insulin resistance (33%) and risk factors, and provided evidence for positive, as opposed to negative, lifestyle intervention messages. CONCLUSION: Community-wide lifestyle interventions have the potential to reduce rates of type 2 diabetes and other chronic diseases in high-risk communities, but require a high level of commitment from the health sector and buy-in from the community. Adequate commitment, leadership, planning and resources are essential.

"Healthy Eating - Healthy Action": evaluating New Zealand's obesity prevention strategy.

BACKGROUND: New Zealand rates of obesity and overweight have increased since the 1980s, particularly among indigenous Maori people, Pacific people and those living in areas of high deprivation. New Zealand's response to the obesity epidemic has been The Healthy Eating-Healthy Action: Oranga Kai - Oranga Pumau (HEHA) Strategy ('the Strategy'), launched in 2003. Because the HEHA Strategy explicitly recognises the importance of evaluation and the need to create an evidence base to support future initiatives, the Ministry of Health has commissioned a Consortium of researchers to evaluate the Strategy as a whole. METHODS: This paper discusses the Consortium's approach to evaluating the HEHA Strategy. It includes an outline of the conceptual framework underpinning the evaluation, and describes the critical components of the evaluation which are: judging to what extent stakeholders were engaged in the process of the strategy implementation and to what extent their feedback was incorporated in to future iterations of the Strategy (continuous improvement), to what extent the programmes, policies, and initiatives implemented span the target populations and priority areas, whether there have been any population changes in nutrition and/or physical activity outcomes or behaviours relating to those outcomes, and to what extent HEHA Strategy and spending can be considered value for money. DISCUSSION: This paper outlines our approach to evaluating a complex national health promotion strategy. Not only does the Evaluation have the potential to identify interventions that could be adopted internationally, but also the development of the Evaluation design can inform other complex evaluations.