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Small numbers, disclosure risk, security, and reliability issues in Web-based data query systems.

Barbara A Rudolph1, Gulzar H Shah, Denise Love

  • 1National Association of Health Data Organizations, Salt Lake City, Utah, USA. brudolph@nahdo.org

Journal of Public Health Management and Practice : JPHMP
|February 16, 2006
PubMed
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This article outlines methods for releasing public health data online, balancing data privacy with accessibility. It details statistical approaches to ensure reliable health statistics while protecting individual information.

Area of Science:

  • Public Health Informatics
  • Data Privacy
  • Statistical Disclosure Limitation

Background:

  • Leading agencies face challenges in disseminating public health data online.
  • Balancing data accessibility with the protection of sensitive health information is crucial.

Purpose of the Study:

  • To describe the development of consensus guidelines for releasing public health data via the Web.
  • To highlight agency approaches for managing disclosure risk and ensuring data reliability.

Main Methods:

  • Review of agency practices for web-based public health data dissemination.
  • Analysis of statistical methods for enhancing data reliability in query systems.
  • Examination of techniques to minimize the risk of disclosing protected health information.

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Main Results:

  • Guidelines and tools for web-based public health data release are described.
  • Factors influencing the choice of statistical methods include query system design, population and cell size, data use, and data supply.
  • Efforts to reduce disclosure risk are detailed.

Conclusions:

  • Developing robust methods is essential for the secure and reliable dissemination of public health data online.
  • Effective strategies balance the need for open data access with stringent privacy protections.