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Abstract Details
Activity Number:
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69
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Type:
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Topic Contributed
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Date/Time:
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Sunday, July 29, 2012 : 4:00 PM to 5:50 PM
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Sponsor:
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Section on Government Statistics
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Abstract - #305477 |
Title:
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Disclosure Avoidance at the National Center for Health Statistics
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Author(s):
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Joe Fred Gonzalez*+ and Eve Powell-Griner
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Companies:
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National Center for Health Statistics and National Center for Health Statistics
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Address:
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3311 Toledo Rd., Hyattsville, MD, 20782-2064, United States
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Keywords:
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confidentiality ;
privacy ;
DRB
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Abstract:
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A major responsibility of the Disclosure Review Board (DRB) at the National Center for Health Statistics (NCHS) is to protect the confidentiality and privacy of its survey respondents, persons or establishments. Before any public-use files (PUFs) can be released, the NCHS DRB must feel confident that measures have been taken to ensure disclosure avoidance where necessary. There are several surveys conducted by the NCHS and each has its own techniques for avoiding disclosure of identifiable data. This paper will discuss some of these disclosure avoidance techniques such as perturbation of variables, coarsening of data, swapping variables, suppression, and not releasing the data as a PUF. In the case where data are not released as a PUF, researchers could possibly analyze a restricted data set under a signed confidentiality agreement via the NCHS Research Data Center.
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