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USING TABLEBUILDER
· table suppression · field exclusion rules Perturbation involves small random adjustments of the statistics and is considered the most satisfactory technique for avoiding the release of identifiable statistics while maximising the range of information that can be released. These adjustments have a negligible impact on the underlying pattern of the statistics. The introduction of these random adjustments will result in tables not adding up. Randomly adjusted individual cells will be consistent across tables, but the totals in any table will not be the sum of the individual cell values. The size of the difference between summed cells and the relevant total will generally be very small. Some tables generated within TableBuilder may contain a substantial proportion of very low counts within cells (excluding cells that have counts of zero). When this occurs, all values within the table are suppressed in order to preserve confidentiality. The following error message displayed at the bottom of the table indicates when table suppression has occurred.
ERROR: Table cell values have been suppressed Due to potential confidentiality risks within the data, Field exclusion rules have been deployed that restrict certain combinations of data items that can be added to the same table. These restrictions have been applied to combinations of items which could allow the isolation of records with unusual characteristics to a small geographic region. The data items that are subject to field exclusion rules are:
· Index of Relative Socio-economic Disadvantage (IRSD) of child – Australia · Index of Relative Socio-economic Disadvantage (IRSD) of child - State · Statistical area level 2 (SA2) of child · State/Territory of child · State/Territory of main provider · Service Delivery Setting · Provider funding overview for the child Document Selection These documents will be presented in a new window.
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