The National Center on Sleep Disorders Research (NCSDR) announced this week that it has posted online an annotated index to selected data resources for sleep-related variables. According to the document, a majority of the data sources are large, random health-related surveys conducted by government agencies, and include variables in relationship to health behavior, health risk factors and nutrition and some co-morbidities.

Visit www.nhlbi.nih.gov/about/ncsdr/index.htm to download "Guide to Selected Publicly Available Sleep-Related Data Resources."