Comparability

Comparability - geographical

Statistics on institutions in day care are made in many other countries. There is no international common guidelines, which implies that methodological approaches differs in different countries.

Comparability over time

There are figures for the number of childcare institutions back to the 1940s in the Statistical Yearbook. At that time, the statistics were about institutions for preventive child care. Since Statistical Yearbook 1967, the number of day-care institutions at national level is calculated, with figures from 1964 and onwards.

Figures from before 2004 can be found in the Statistical Yearbook while figures from 2004 onwards can be found in the StatBank. The number of institutions for the period from 2004 to 2006 can be found in the table PAS2 and for the period from 2007 to 2014 in the table [PAS22](http://www.statbank.dk/ Pas22). Until 2007, the measurement date for the statistics is during spring, but as of 2007, the measurement date moved to October 1st. The change in the measurement date from 2007 onwards may cause imbalances in pre-2007 and after comparisons. For example, it can be expected that institutions can be opened after the summer holidays and therefore count in October, but be closed in the autumn of 2007. Comparison before and after 2007 should therefore take into account the change in the measurement time and be done with caution.

The compilation of institutions from 2017 has been collected through personal contact of the DST survey.

Coherence - cross domain

This statistic is related to statistics on childcare published by Statistics Denmark. In recent years, these statistics have been subject to increased political attention, especially the possibility to benchmark municipalities. Statistical Denmark also publish statistics on:

• Rates for Child Care
• Recipients of subsidy for private day-care
• Childcare before school start
• Childcare after school start

This statistic (BOERN4) was prior to 2018 a part of “childcare before school start”, which also documents BOERN1, BOERN2 and BOERN3. In 2018 BOERN4 a individual documentation was made for the statistic, as it uses different methods of measurement.

Coherence - internal

Statistic Denmark is in dialog with its data suppliers to standardize the structure of data. Across the different sources there is good consistency.