Why isn all the information collected in NCHS surveys available in public use files?
Some information, including data on alcohol and drug use, and data collected by the Diagnostic Interview Schedule for Children (DISC), and the DISC Predictive Scale – Youth Conduct Disorder, is not available in publicly released files. These files have not been released in order to preserve privacy and confidentiality, consistent with the confidentiality provisions under which the data were collected. Data files including this sensitive information are made available at the NCHS Research Data Center.
