Usability testing of an electronic health record form to support physician-based counseling and self-management of overweight children.

Overweight management is challenging due to time constraints and minimal training in nutrition, physical activity and brief counseling. The Telephone-linked Care for Healthy Eating and Activity Today system may help physicians counsel by providing home data and effective behavioral theory-based counseling. Incorporating Goal Directed Task Analysis, Display Task Description and usability testing helped align the interface with the user's needs and workflow. We recommend routine use of these approaches to improve interface quality and usability.