Disclosure control and data dissemination

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  • Articles and reports: 11-522-X200600110431
    Description:

    We describe statistical disclosure control methods (SDC) developed for a public release Canadian Hospitals Injury Reporting and Prevention Program (CHIRPP) micro-data file. CHIRPP is a national injury surveillance database managed by the Public Health Agency of Canada (PHAC). After describing CHIRPP, the paper includes a brief overview of basic SDC concepts, as an introduction to the process for selecting and developing the appropriate SDC methods for CHIRPP given its specific challenges and requirements. We then summarize some key results. The paper concludes with a discussion of the implication of this work for the health information field and closing remarks with respect to the some methodological issues for consideration.

    Release date: 2008-03-17

  • Articles and reports: 11-522-X20050019437
    Description:

    The explanatory information accompanying statistical data is called metadata, and its presence is essential for the correct understanding and interpretation of the data. This paper will report on the experience of Statistics Canada in the conceptualization, naming and organization of variables on which data are produced.

    Release date: 2007-03-02

  • Articles and reports: 11-522-X20050019485
    Description:

    The ISQ is bound under its incorporating legislation to guarantee the confidentiality of the information it collects. To this end, it has established a policy on the confidentiality of tables for dissemination. One of the components of this policy deals with the confidentiality of tables prepared from demographic events.After a brief review of the various aspects of the dissemination of tables, the methodology developed for statistical control of the disclosure of tables prepared from demographic events will be presented. The informatics approach to automate this process will be presented using data from the Registre des évènements démographiques du Québec as background.

    Release date: 2007-03-02

  • Articles and reports: 11-522-X20010016282
    Description:

    This paper discusses in detail issues dealing with the technical aspects of designing and conducting surveys. It is intended for an audience of survey methodologists.

    The Discharge Abstract Database (DAD) is one of the key data holdings held by the Canadian Institute for Health Information (CIHI). The institute is a national, not-for-profit organization, which plays a critical role in the development of Canada's health information system. The DAD contains acute care discharge data from most Canadian hospitals. The data generated are essential for determining, for example, the number and types of procedures and the length of hospital stays. CIHI is conducting the first national data quality study of selected clinical and administrative data from the DAD. This study is evaluating and measuring the accuracy of the DAD by returning to the original data sources and comparing this information with what exists in the CIHI database, in order to identify any discrepancies and their associated reasons. This paper describes the DAD data quality study and some preliminary findings. The findings are also briefly compared with another similar study. In conclusion, the paper discusses subsequent steps for the study and how the findings from the first year are contributing to improvements in the quality of the DAD.

    Release date: 2002-09-12

  • Surveys and statistical programs – Documentation: 75F0002M199303A
    Description:

    This paper is intended as an initial proposal for a strategy for the Survey of Labour and Income Dynamics (SLID) longitudinal microdata files.

    Release date: 1995-12-30

  • Surveys and statistical programs – Documentation: 75F0002M199303B
    Description:

    This paper presents detailed information on specific data variables for the Survey of Labour and Income Dynamics (SLID) microdata files.

    Release date: 1995-12-30

  • Articles and reports: 12-001-X197800154830
    Description: When a two-stage sample is used to collect data, the correlations between the sampled units make the ?2 test of independence invalid. Use of the ordinary ?2 tables generally results in a test which is greater than the desired level of significance. The effect of the sample design comes from two main areas: the sample size within PSU’s and the degree to which the characteristics are independent within each PSU. The effect of the sample size within PSU’s is greatest when there is no independence within each PSU, and diminishes as the degree of independence increases.
    Release date: 1978-06-15
Data (0)

Data (0) (0 results)

No content available at this time.

Analysis (5)

Analysis (5) ((5 results))

  • Articles and reports: 11-522-X200600110431
    Description:

    We describe statistical disclosure control methods (SDC) developed for a public release Canadian Hospitals Injury Reporting and Prevention Program (CHIRPP) micro-data file. CHIRPP is a national injury surveillance database managed by the Public Health Agency of Canada (PHAC). After describing CHIRPP, the paper includes a brief overview of basic SDC concepts, as an introduction to the process for selecting and developing the appropriate SDC methods for CHIRPP given its specific challenges and requirements. We then summarize some key results. The paper concludes with a discussion of the implication of this work for the health information field and closing remarks with respect to the some methodological issues for consideration.

    Release date: 2008-03-17

  • Articles and reports: 11-522-X20050019437
    Description:

    The explanatory information accompanying statistical data is called metadata, and its presence is essential for the correct understanding and interpretation of the data. This paper will report on the experience of Statistics Canada in the conceptualization, naming and organization of variables on which data are produced.

    Release date: 2007-03-02

  • Articles and reports: 11-522-X20050019485
    Description:

    The ISQ is bound under its incorporating legislation to guarantee the confidentiality of the information it collects. To this end, it has established a policy on the confidentiality of tables for dissemination. One of the components of this policy deals with the confidentiality of tables prepared from demographic events.After a brief review of the various aspects of the dissemination of tables, the methodology developed for statistical control of the disclosure of tables prepared from demographic events will be presented. The informatics approach to automate this process will be presented using data from the Registre des évènements démographiques du Québec as background.

    Release date: 2007-03-02

  • Articles and reports: 11-522-X20010016282
    Description:

    This paper discusses in detail issues dealing with the technical aspects of designing and conducting surveys. It is intended for an audience of survey methodologists.

    The Discharge Abstract Database (DAD) is one of the key data holdings held by the Canadian Institute for Health Information (CIHI). The institute is a national, not-for-profit organization, which plays a critical role in the development of Canada's health information system. The DAD contains acute care discharge data from most Canadian hospitals. The data generated are essential for determining, for example, the number and types of procedures and the length of hospital stays. CIHI is conducting the first national data quality study of selected clinical and administrative data from the DAD. This study is evaluating and measuring the accuracy of the DAD by returning to the original data sources and comparing this information with what exists in the CIHI database, in order to identify any discrepancies and their associated reasons. This paper describes the DAD data quality study and some preliminary findings. The findings are also briefly compared with another similar study. In conclusion, the paper discusses subsequent steps for the study and how the findings from the first year are contributing to improvements in the quality of the DAD.

    Release date: 2002-09-12

  • Articles and reports: 12-001-X197800154830
    Description: When a two-stage sample is used to collect data, the correlations between the sampled units make the ?2 test of independence invalid. Use of the ordinary ?2 tables generally results in a test which is greater than the desired level of significance. The effect of the sample design comes from two main areas: the sample size within PSU’s and the degree to which the characteristics are independent within each PSU. The effect of the sample size within PSU’s is greatest when there is no independence within each PSU, and diminishes as the degree of independence increases.
    Release date: 1978-06-15
Reference (2)

Reference (2) ((2 results))

  • Surveys and statistical programs – Documentation: 75F0002M199303A
    Description:

    This paper is intended as an initial proposal for a strategy for the Survey of Labour and Income Dynamics (SLID) longitudinal microdata files.

    Release date: 1995-12-30

  • Surveys and statistical programs – Documentation: 75F0002M199303B
    Description:

    This paper presents detailed information on specific data variables for the Survey of Labour and Income Dynamics (SLID) microdata files.

    Release date: 1995-12-30
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