Accuracy and reliability

Overall accuracy

The statistics are based on primary data that has been edited in the process of producing other statistics, and the resulting quality is therefore regarded as being good. For an assessment of the overall accuracy, refer to the documentations of statistics for Establishment-related Business Statistics, the Register-based Labour Force Statistics, Educational Attainment, and Business Demography.

Sampling error

Not relevant for these statistics.

Non-sampling error

For an assessment of the non-sampling errors, refer to the documentations of statistics for Establishment-related Business Statistics, the Register-based Labour Force Statistics, Educational Attainment, and Business Demography.

Private as well as public employers are obliged to report data to e-Income relating to the workplace at which the job takes place. With respect to the municipal sector, the data reports are particularly inadequate for 2008-2010. Against this background, it has been necessary for Statistics Denmark to conduct major rectifications of the data with respect to distributing the statistics by geographic areas and detailed activities. However, the quality will never be the same unless the necessary data reports had been rectified by the employer. The measure sources of inaccuracy are, especially linked to the distribution of jobs in the municipal sector classified by activity. There are, in particularly, uncertainty with regard to whether a person is employed in administration or not, whether a person is employed in teaching in the primary and lower secondary school or in teaching not further specified, or whether a person is working in a nursing home or within home help. There is also uncertainty with regard to the distribution of jobs by municipality of the workplace.

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 statistics is based on edited data from Statistics Denmark's central registers that form the bases of official statistics. No actual measurement of the quality and no calculations on measures of accuracy has been performed. For an assessment of total quality, refer to the documentations of statistics for Establishment-related Business Statistics, the Register-based Labour Force Statistics, Educational Attainment, and Business Demography.

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

Only final figures are published.