Press release: “In this release, the National Center for Health Statistics (NCHS) updates estimates for 15 selected health measures based on data from the January–September 2006 National Health Interview Survey (NHIS) and presents estimates from 1997 through 2005 for comparison. The 15 Early Release measures are being published prior to final data editing and final weighting to provide access to the most recent information from NHIS. The estimates will be updated on a quarterly basis as each new quarter of the NHIS data becomes available. Due to small sample sizes, estimates based on less than a year of data may have large variances, and caution should be used in analyzing these estimates. Patterns for such estimates may change as more data become available.”