Accuracy and reliability

Overall accuracy

The statistic is based upon the population registered in the Central Population Register (CPR). The quality of the information concerning immigrants and descendants is generally high.

Sampling error

Not relevant for these statistics.

Non-sampling error

Underestimation of emigration – see the dokument i the bottom of webpage.

Quality management

Statistics Denmark follows the recommendations on organisation and management of quality given in the Code of Practice for European Statistics (CoP) and the implementation guidelines given in the Quality Assurance Framework of the European Statistical System (QAF). A Working Group on Quality and a central quality assurance function have been established to continuously carry through control of products and processes.

Quality assurance

Statistics Denmark follows the principles in the Code of Practice for European Statistics (CoP) and uses the Quality Assurance Framework of the European Statistical System (QAF) for the implementation of the principles. This involves continuous decentralized and central control of products and processes based on documentation following international standards. The central quality assurance function reports to the Working Group on Quality. Reports include suggestions for improvement that are assessed, decided and subsequently implemented.

Quality assessment

The statistic is based upon the population registered in the Central Population Register (CPR). The quality of the information concerning immigrants and descendants is generally high.

The latest work have shown that the population at year-end is over estimated by 7.500 individuals approximately 0,14 pct.

This is caused by parts of the emigrants not being registered at emigrated until after the publishing of the statistics.

Emigrants who does not plan to return to Denmark, does not have a strong incentive to report their emigration to the National Register of Persons. This will not be registered until a public authority attempts to make contact with the individual. In these instances the National Register of Persons must launch a thorough investigation in order to determine the new residence of the individual. If this residence cannot be determined, the individual is reported as a missing person instead of as emigrated. In other cases the emigration is registered when the individual re-immigrates.

Data revision - policy

Statistics Denmark revises published figures in accordance with the Revision Policy for Statistics Denmark. The common procedures and principles of the Revision Policy are for some statistics supplemented by a specific revision practice.

Data revision practice

Not relevant for these statistics.