A Process Model for Evidence-Based Literature Syntheses

Abstract

PURPOSE/OBJECTIVES: To describe the development and implementation of the Triad Model of Research Synthesis, developed as a mechanism to produce systematic literature reviews that can serve as sources of evidence for decision making in health care. DATA SOURCES: Authors' recollections of the development and implementation process over a one-year period during 2002. Tracking forms were completed by members of three triad teams as they compiled research syntheses on clinical topics: pharmacologic treatment of dyspnea, assessment of sleep disturbances in patients with cancer, and exercise as an intervention for cancer-related fatigue. DATA SYNTHESIS: The systematic literature review process includes the following steps: (a) organize, search the literature, and focus the research synthesis question; (b) critique the selected literature; (c) synthesize the evidence; and (d) write. On average, triad members spent hours that were equivalent to full-time work during the year (excluding completion of manuscripts) on the synthesis projects. Hours spent varied by member role and with each phase of the process. CONCLUSIONS: Performing a research synthesis using the triad model was a productive and resource-intensive experience that points to the need for negotiating resources prior to embarking on such an exercise. IMPLICATIONS FOR NURSING: Given a group of highly motivated nurses and others with adequate time and resources, this model can be effective when developing systematic reviews about a variety of topics. Literature syntheses developed can be used as evidence for clinicians and others to develop practice protocols and other evidence-based care guidelines.

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