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Common questions and answers.
Entire collection of data resources.
The Public Health Service Act (42 U.S.C. 242m(d)) provides that the data collected by the National Center for Health Statistics (NCHS) may be used only for the purpose for which they were obtained; any effort to determine the identity of any reported cases, or to use the information for any purpose other than for health statistical reporting and analysis, would violate this statutory restriction and the conditions of the data use agreement. NCHS does all it can to ensure that the identity of data subjects cannot be disclosed; as well as characteristics that might lead to identifications are omitted from the data set. Nevertheless, it may be possible in a rare instance, through complex analysis, and with outside information, to ascertain from the data sets the identity of particular persons or establishments.
Considerable harm could ensue if this were done.
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