Can the data collected by the NSCH be analyzed at the county or other sub-state geopgraphic levels?
Currently, the public use data file for the NSCH has state identifiers and a binominal variable identifying children living in the metropolitan statistical areas (MSA) with greater than 500,000 persons in each state. This indicator is suppressed whenever the population for the MSA or non-MSA area is less than 500,000 persons. Zipcodes are collected by the National Center for Health Statistics (NCHS), however, these data are not released in the public use data file due to confidentiality restrictions. It is possible to analyze these zipcode data on site at the NCHS’ Research Data Center in Hyattsville, MD. Interested researchers must first submit a proposal to the Research Data Center. Go to: http://www.cdc.gov/nchs/r&d/rdc.htm, for more information about the Research Data Center and the proposal process.