Using a registry to improve immunization delivery.

The NJIPSP was successful in encouraging a group of small urban practices to adopt the use of immunization registry and to transform immunization delivery from a mechanistic well-child service to a visible, monitored process of care. The project represents a unique combination of technology, public-private collaboration, and well-established quality improvement techniques. The change process involved the whole office as a team in adopting new immunization delivery roles and services. The greatest barrier to acceptance of the registry was (and continues to be) the need for manual data entry as the primary source of data collection, rather than electronic data transfer from other systems. The manual entry of data was labor intensive for participating practices and affected data measurement. Despite this barrier, however, the majority of practices substantially improved the quality of their immunization delivery practices in multiple areas. The rapid movement of primary care practices toward some form of electronic record may reduce this barrier and increase the percentage of practices willing to use a community registry. Practices that engaged collectively in the change process gained momentum from the group effort. Equally important was the public health partnership that helped identify and reduce improvement obstacles. Sustainability of practice-based immunization changes will rely, in part, on the registry's ease of use and the continued visibility of public health at the practice level. Active practice level collaboration by public health adds great value to change efforts. We believe that the best possible immunization delivery relies on both technology (registries and the EMR) and effective office systems. Projects like the NJIPSP are models for systems that integrate technology, practice change, and quality improvement, and their success has the potential to foster the spread of this approach to other primary care practices (especially in New Jersey). The NJIPSP combination of office-based change approaches and an active partnership and hands on involvement with public health has the potential to support the delivery of consistently excellent immunization delivery.