Objective
Infobuttons are clinical decision tools embedded in the electronic
health record that attempt to link clinical data with context sensitive
knowledge resources. We systematically reviewed technical approaches that
contribute to improved infobutton design, implementation and
functionality.
Methods
We searched databases including MEDLINE, EMBASE, and the Cochrane
Library database from inception to March 1, 2016 for studies describing the
use of infobuttons. We selected full review comparative studies, usability
studies, and qualitative studies examining infobutton design and
implementation. We abstracted usability measures such as user satisfaction,
impact, and efficiency, as well as prediction accuracy of infobutton content
retrieval algorithms and infobutton adoption/interoperability.
Results
We found 82 original research studies on infobuttons. Twelve studies
met criteria for detailed abstraction. These studies investigated infobutton
interoperability (1 study); tools to help tailor infobutton functionality (1
study); interventions to improve user experience (7 studies); and
interventions to improve content retrieval by improving prediction of
relevant knowledge resources and information needs (3 studies). In-depth
interviews with implementers showed the Health Level Seven (HL7) Infobutton
standard to be simple and easy to implement. A usability study demonstrated
the feasibility of a tool to help medical librarians tailor infobutton
functionality. User experience studies showed that access to resources with
which users are familiar increased user satisfaction ratings; and that links
to specific subsections of drug monographs increased information seeking
efficiency. However, none of the user experience improvements led to
increased usage uptake. Recommender systems based on machine learning
algorithms outperformed hand-crafted rules in the prediction of relevant
resources and clinicians’ information needs in a laboratory setting,
but no studies were found using these techniques in clinical settings.
Improved content indexing in one study led to improved content retrieval
across three health care organizations.
Conclusion
Best practice technical approaches to ensure optimal infobutton
functionality, design and implementation remain understudied. The HL7
Infobutton standard has supported wide adoption of infobutton functionality
among clinical information systems and knowledge resources. Limited evidence
supports infobutton enhancements such as links to specific subtopics,
configuration of optimal resources for specific tasks and users, and
improved indexing and content coverage. Further research is needed to
investigate user experience improvements to increase infobutton use and
effectiveness.