Integrating open-source technologies to build low-cost information systems for improved access to public health data.

Effective public health practice relies on the availability of public health data sources and assessment tools to convey information to investigators, practitioners, policy makers, and the general public. Emerging communication technologies on the Internet can deliver all components of the "who, what, when, and where" quartet more quickly than ever with a potentially higher level of quality and assurance, using new analysis and visualization tools. Open-source software provides the opportunity to build low-cost information systems allowing health departments with modest resources access to modern data analysis and visualization tools.

Association of the built environment with physical activity and obesity in older persons.

Objective: We examined whether older persons who live in areas that are conducive to walking are more active or less obese than those living in areas where walking is more difficult.

Methods: We used data from the Adult Changes in Thought cohort study for a cross-sectional analysis of 936 participants aged 65 to 97 years. The Walkable and Bikable Communities Project previously formulated a walkability score to predict the probability of walking in King County, Washington.

Current practices in spatial analysis of cancer data: mapping health statistics to inform policymakers and the public.

Background: To communicate population-based cancer statistics, cancer researchers have a long tradition of presenting data in a spatial representation, or map. Historically, health data were presented in printed atlases in which the map producer selected the content and format. The availability of geographic information systems (GIS) with comprehensive mapping and spatial analysis capability for desktop and Internet mapping has greatly expanded the number of producers and consumers of health maps, including policymakers and the public.

Distance from home when death occurs: a population-based study of Washington State, 1989-2002.

Objective: For patients who die in hospitals, the regionalization of tertiary health care services may be increasing the home-to-hospital distance, particularly for younger patients whose care is especially regionalized and for whom access to and use of home hospice services remains limited. The objective of this study was to test the hypotheses that the distance from home at the time of death in a hospital has increased over time and is inversely related to the age of the dying patient.

Methods: A population-based case series was conducted in Washington State of all deaths of state residents from 1989 to 2002.

EpiQMS: an Internet application for access to public health data for citizens, providers, and public health investigators.

Access to epidemiologic data is critical to public health practice. Unfortunately, most published data are out of date and live databases are inaccessible because of issues of confidentiality, varying user needs, cost, security concerns, and other reasons. EpiQMS is a Web-based application that allows exploratory, statistical, and geographic analysis of public health data.