Using a logic model to develop an intervention for improving miscarriage care in the emergency department.

Miscarriage is the most common pregnancy-related complication and is frequently treated at the emergency department (ED). Parents have expressed dissatisfaction with the care they received at the ED and few interventions have been developed for improving miscarriage care. When planning an intervention, it is crucial to develop a program theory specifying what must be done for an intervention to achieve its objectives. The purpose of this paper is to describe the logic model process for developing an intervention intended to improve parents' miscarriage experience at the ED. The six steps of W. K. Kellogg Foundation (2004) theory logic model were used to 1) describe the problem; 2) conduct a needs assessment; and to identify 3) expected results, 4) influential factors, 5) intervention strategies, and 6) assumptions related to change strategies. A community-based participatory approach was used. It included two planning groups: parents who had visited the ED for a miscarriage (N = 9) and health professionals (N = 8). The theory logic model provided a rigorous framework for intervention development based on theories, scientific evidence, and the experiences of parents and health professionals. Detailed description of the intervention should facilitate its implementation, evaluation, and replication for other health problems.