Issues for causes of death data:
Use of the supporting documentation released with the statistics is important for assessing coherence within the dataset and when comparing the statistics with data from other sources. For example, differences in the scope of collections, classifications used, point in time at which the analysis or coding occurred, availability of information for coding purposes, purpose for which the data/information is being produced, and confidentiality protocols may be different for ABS data and other sources of causes of death information.
Changes to questions, scope etc. over time can affect the consistency of data collected over the period, even when the source of the data is the same. These changes can be the result of legislative or program objective changes.
The completeness or quality of older versus newer data can also impact on comparisons across time or domains.
Statistical concepts for questions are not always suited to the administrative purpose or the means of collection.