Objectives. We assessed whether community health workers (CHWs) could improve glycemic control among Mexican Americans with diabetes. Methods. We recruited 144 Mexican Americans with type 2 diabetes between January 2006 and September 2008 into the single-blinded, randomized controlled Mexican American Trial of Community Health Workers (MATCH) and followed them for 2 years. Participants were assigned to either a CHW intervention, delivering self-management training through 36 home visits over 2 years, or a bilingual control newsletter delivering the same information on the same schedule. Results. Intervention participants showed significantly lower hemoglobin A1c levels than control participants at both year 1 Δ = −0.55; P = .021) and year 2 (Δ = −0.69; P = .005). We observed no effect on blood pressure control, glucose self-monitoring, or adherence to medications or diet. Intervention participants increased physical activity from a mean of 1.63 days per week at baseline to 2.64 days per week after 2 years. Conclusions. A self-management intervention delivered by CHWs resulted in sustained improvements in glycemic control over 2 years among Mexican Americans with diabetes. MATCH adds to the growing body of evidence supporting the use of CHWs to reduce diabetes-related health disparities.
This article describes the most recent efforts by the Quad Council of Public Health Nursing organizations to review and revise the competencies for PHN practice, and highlights the implications of these competencies for practice, education, and research. The Quad Council is a coalition of four nursing organizations with a focus on public health nursing and includes the Association of Community Health Nursing Educators; the Association of Public Health Nursing (known prior to July 1, 2012 as the Association of State and Territorial Directors of Nursing); the Public Health Nursing section of the American Public Health Association; and the Council on Economics and Practice of the American Nurses' Association. The Quad Council competencies are based on the Council on Linkages competencies for public health professionals and were designed to ensure that public health nursing fits in the domain of public health science and practice.
Objectives
Community Health Workers (CHWs) have been recommended to reduce diabetes disparities, but few robust trials of this approach have been conducted. Limitations of prior studies include: unspecified a priori outcomes; lack of blinded outcome assessments; high participant attrition rates; and lack of attention to intervention fidelity. These limitations reflect challenges in balancing methodologic rigor with the needs of vulnerable populations. The Mexican-American Trial of Community Health workers (MATCH) was a blinded randomized controlled trial testing CHW efficacy in improving physiologic outcomes and self-management behaviors among Mexican-Americans with type 2 diabetes. This paper describes methods used to overcome limitations of prior studies.
Research Design and Methods
The primary aim was to determine if a CHW intervention would result in significant reductions in Hemoglobin A1c and rates of uncontrolled blood pressure. 144 Mexican-Americans with diabetes were randomized. The intervention consisted of self-management training delivered by CHWs over a 24-month period; the comparison population received identical information via bilingual newsletter. Blinded research assistants completed assessments at baseline, 12 months, and 24 months post-randomization.
Results
The MATCH cohort was characterized by low acculturation and socioeconomic status. Study participants had low rates of medication adherence and glucose monitoring. 70% had poor glycemic control with A1c levels over 7.0, and 57.3% had blood pressures worse than ADA target levels (<130/80).
Conclusions
MATCH preserved community sensitivity and methodologic rigor. The study’s attention to intervention fidelity, behavioral attention control, blinded outcomes assessment, and strategies to enhance participant retention can be replicated by researchers testing culturally-tailored CHW interventions.
An evidence-based approach to Public/Community Health Nursing (P/CHN) requires that P/CHN educators prepare practitioners with the relevant skills, attitudes, and knowledge. Such education should be competency-based and have measurable outcomes to demonstrate student preparation. In 2003, the Quad Council competencies were developed to be applied at two levels of public health nursing practice: the staff nurse/generalist role and the manager/specialist/consultant role. This paper describes a process for evaluation and revision of a graduate curriculum to prepare Advanced Practice Clinical Nurse Specialists (CNS) in P/CHN, to ensure that the educational program addresses and develops knowledge and proficiency in all relevant competencies. This paper documents the process of integrating the competencies throughout the P/CHN graduate curriculum at varying levels, guiding students to achieve proficiency in each competency by the end of the program. Measurement of achievement in these competencies will be discussed, and examples provided. Advanced Practice Public Health Nurses educated via this competency-based approach will be prepared to sit for national certification as a CNS in Public/Community Health, and to assume leadership roles in public health nursing.
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