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BACKGROUND Internet-based clinical trial matching systems have the potential to streamline the search process for women with breast cancer seeking alternative treatments. A prototype system was developed to leverage the capabilities of a personal health record system for the purpose of identifying clinical trials. OBJECTIVE This study examines how breast(More)
BACKGROUND Adults with low literacy may encounter informational obstacles on the Internet when searching for health information, in part because most health Web sites require at least a high-school reading proficiency for optimal access. OBJECTIVE The purpose of this study was to 1) determine how low-literacy adults independently access and evaluate(More)
BACKGROUND Dentists report that the complexity and poor usability of practice management systems (PMSs) are factors in the slow adoption of computers at chairside. METHODS Three dental informatics researchers performed heuristic evaluations of four PMSs to identify potential usability problems that may be encountered during the clinical care process. Each(More)
BACKGROUND The usability of dental computer-based patient record (CPR) systems has not been studied, despite early evidence that poor usability is a problem for dental CPR system users at multiple levels. METHODS The authors conducted formal usability tests of four dental CPR systems by using a purposive sample of four groups of five novice users. The(More)
Increasingly sophisticated technologies, such as On-Line Analytical Processing (OLAP) and Geospatial Information Systems (GIS), are being leveraged for conducting community health assessments (CHA). Little is known about the usability of OLAP and GIS interfaces with respect to CHA. We conducted an iterative usability evaluation of the Spatial OLAP(More)
The objective of this study was to examine the information provided on comprehensive cancer centers' Web sites regarding clinical trials. Thirty-nine Web sites were visually inspected for four categories of variables: navigation to the clinical trial information, search functionality provided to the visitor, information content provided about trials, and(More)
BACKGROUND Data analysis in community health assessment (CHA) involves the collection, integration, and analysis of large numerical and spatial data sets in order to identify health priorities. Geographic Information Systems (GIS) enable for management and analysis using spatial data, but have limitations in performing analysis of numerical data because of(More)
The objective of this study was to determine the relative efficiency of novices compared to a prediction of skilled use when performing tasks using the touchscreen interface of an EMR developed in Malawi. We observed novice users performing touchscreen tasks and recorded timestamp data from their performances. Using a predictive human performance modeling(More)
Usability methods, such as heuristic evaluation, cognitive walk-throughs and user testing, are increasingly used to evaluate and improve the design of clinical software applications. There is still some uncertainty, however, as to how those methods can be used to support the development process and evaluation in the most meaningful manner. In this study, we(More)