The use of the emergency departments as a regular source of sick care has been increasing, despite the fact that it is costly and is often an inappropriate source of care. This study examines factors associated with routine use of emergency departments by using a national sample of US children.

This invited commentary looks at the first-ever profile of American children as they enter kindergarten, noting that the data are important for understanding their levels of early development and learning and for advancing our concept of readiness. Also discusses methodological issues related to...

Social network analysis, a methodological approach to measuring and mapping relationships, can be used to study whole networks, all of the ties within a defined group, or connections that individuals have in their personal communities. This brief introduces the concepts behind SNA and...

Information about institutional and noninstitutional residents of group quarters, particularly those with disabilities, is limited. This article uses the 2006 and 2007 American Community Surveys to produce descriptive statistics on the working-age population with and without disabilities by...