Record-level Measures of Disclosure Risk for Survey Microdata

Elamir, Elsayed A. H. and Skinner, Chris J. (2004) Record-level Measures of Disclosure Risk for Survey Microdata. Southampton, UK, Southampton Statistical Sciences Research Institute, 20pp. (S3RI Methodology Working Papers, M04/02).


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Measures of disclosure risk at the record level have a variety of potential uses in statistical disclosure control for microdata. We propose a new record level measure of disclosure risk which is the probability that a unique match between a microdata record and a population unit is correct. For discrete key variables subject to no measurement error, we study this measure under the assumption of a Poisson model and a Poisson-gamma model. Moreover, we apply the approaches to a sample of microdata from the U.K. General Household Survey. The results indicate that the risk measure may be used to establish whether sample unique records are unique in the population.

Item Type: Monograph (UNSPECIFIED)
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Subjects: H Social Sciences > HA Statistics
Divisions : University Structure - Pre August 2011 > Southampton Statistical Sciences Research Institute
ePrint ID: 8175
Accepted Date and Publication Date:
Date Deposited: 11 Jul 2004
Last Modified: 31 Mar 2016 11:11

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