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Accuracy and reliability

Contact info

Personal Finances and Welfare, Social Statistics
Anne Morsing
+45 3917 3197

aem@dst.dk

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Disability and marginalized adults

This release is based on data from 75 municipalities. Precision and reliability are primarily affected by missing or inadequate data reportings from the municipalities. Amongst other things, this is due to that the municipalities experience technical challenges in setting up the system-to-system solutions used for data reporting. Another significant source of missing reportings is that in 2018 new reporting requirements for the statistics have been introduced. This has meant that the municipalities have converted their data from 2013 to new requirements. Many municipalities have had challenges with re-reporting services that have already ended.

Overall accuracy

The accuracy of the statistics is primarily influenced by missing or inadequate data reporting from the municipalities. At the moment data from 75 municipalities are included in the statistics. For example, because of insufficient data reporting, some types of services are completely missing from the municipalities’ data reportings or the reported services lack the required information about the individual service, such as a target group.

Inadequate data reporting is often due to the fact that the municipalities have technical challenges in setting up their system-to-system solutions. This may mean that it is not clear to the municipality or Statistics Denmark which criteria are set in terms of which data is reported.

For some types of services, they are most often provided in a different department in the municipality than the one who reports data. This is often the case of §95 of the Social Services Act, which is often administered by the department of services to elderly. As it is usually the department of social services, which reports data to this statistic, §95 is often missing in the data reported to Statistics Denmark.

A significant source of missing reports is also that new reporting requirements for the statistics have been introduced in 2018. This means that the municipalities have converted their data from 2013 to match the new reporting requirements. In this context, it has been particularly challenging for the municipalities to report data on services that have already ended. Therefore, some data is missing in the early quarters.

The implementation of the new reporting requirements, on the other hand, has meant that the quality of the statistics has increased. This is due in part to the fact that the types of services are more clearly defined. For example, in previous editions of the statistics, it has been difficult to distinguish different types of housing services and social education support.

Sampling error

At the moment data from 75 municipalities are included in the statistics.

Non-sampling error

At the moment data from 75 municipalities are included in the statistics.

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 do not contain data from all municipalities in the country. At the moment 75 municipalities are included in the statistics, of which 36 municipalities provide data for the entire statistics period as of Q4 2013. The lack of coverage is the most important factor in the applicability of the statistics.

There may be major variations, when comparing the number of individual types of services across municipalities, even though population size is taken into account. This can be due to the difference in the visitation practices among the municipalities. Some municipalities assign some types of services to a greater extent than other municipalities, and conversely the same municipality may be more restrictive in assigning other types of services. Especially in the early quarters, an increase in the number of services over time is seen. For example , there is a significant increase from 2014 to 2015. The number of services is estimated to be generally underestimated in the earliest quarters due to lack of reporting.

The data contained in the statistics is relevant, current and available. Service types are unambiguously defined and are comparable to categorizations used in other available data about municipalities' expenses for the selected services. Data is published annually.

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

Any revisions of previously released data will be made with each new release. Data from 2013 and onwards will be updated with each release. Revisions may be due to the fact that municipalities have reported data of a better quality or that Statistics Denmark improves their data processing.