Comparability

Comparability - geographical

The statistics are not based on EU legislation or other international guidelines, but other countries collect and publish similar data. For example, the Norwegian Sports Confederation collects and publishes figures for sports associations, memberships and activities on their website and in [key figures reports](https://www.idrettsforbundet.no/contentassets/9f94ba79767846d9a67d1a56f405okk20194c2. pdf). In Sweden, the Swedish Research Council for Sport Science has a website on sports statistics, which i.a. shows membership and association figures based on reports from special unions. In the Netherlands, the National Bureau of Statistics periodically publishes statistics on sports associations, memberships, volunteers and use of facilities

Comparability over time

There are no data jams in the registry based statistics. It is possible over time to compare results from the Sports Institute's studies of Danish sports and exercise habits. The survey takes place every four years. Referring to the original sourcesthe original sources. The report provides a picture of how many Danes practice sports and exercise, what activities they do and how the activities are organized. The study follows on from similar studies of the Danes' sports habits back in 1964.

There are some discrepancies in the membership for 2019 compared to 2018, which relates to the statbank tables IDRAKT01 and IDRAKT02. This is due to the fact that it is the local business sports associations that register how many people exercise at work in their local areas. It is a practice that is underway, with some of the local corporate sports associations registering exercise at the workplace to a greater extent than before. This applies, for example, in the municipality of Lemvig. In addition, the relocation of members between municipalities can be a cause of large member fluctuations, which is the case for Brønderslev and Albertslund in 2019. This is due to the fact that larger national associations during corporate sports are registered under the municipalities where the companies are headquartered.

Due to COVID-19 there will be a decrease in the number of matches played and attendances. Data comes from the unions' reports, which it must considered to be of high quality.

There are some discrepancies in the membership for 2019 compared to 2018, which relates to the tables IDRAKT01 and IDRAKT02. This is due to the fact that it is the local business sports associations that register how many people exercise at work in their local areas. It is a practice that is underway, with some of the local corporate sports associations registering exercise at the workplace to a greater extent than before. This applies, for example, in the municipality of Lemvig. In addition, the relocation of members between municipalities can be a cause of large member fluctuations, which is the case for Brønderslev and Albertslund in 2019. This is due to the fact that larger national associations during corporate sports are registered under the municipalities where the companies are headquartered.

Due to COVID-19 there will be a decrease in the number of matches played, the number of attendances and the average number of attendances per match season 19/20 in the table IDRTIL01. The 19/20 season was cancelled for The Handball League, the Basketball League and the Super Ice League, which is why the number of matches and thus the total number of attendances is significantly lower than in previous years. For the Supericeleague, 8 matches were played without attendances, which also contributes to the average number of attendances falling. This is also the case for the Super League as well as the 1st Division in football, where the last part of the season was played with limited spectators or for empty stadiums. In general, in the 19/20 season had fewer national matches, which is due to the fact that, the planned matches during COVID-19 were also canceled. Due to the new tournament structure, the 3rd division is included in men's football from the 2021/22 season, because the 2nd division has been split up into two independent divisions.

In four single matches, over four seasons (Woman2009/10, Woman2011/12, Men2015/16, Woman2016/17) for men and women national teams in handball, there is no attendances. The correlation between the number of matches and the number of attendances for these individual seasons may therefore be slightly different. Attendances per. match in the above seasons are calculated without the individual mentioned matches.

In a single match for the basketball national team season 2007/08 there is no attendance. The correlation between the number of matches and the number of attendances for this individual season may therefore be slightly different. Attendances per. match in the above mentioned season is calculated without the individual mentioned match.

Coherence - cross domain

Certain results can be compared to other publications of the original sources, such as the Central Association Register, Facility Database and results from the Sports Institute's studies of Danish sports and exercise habits.

Coherence - internal

The update with the reference year 2022, the data in IDRAKT01 have been rounded to whole 10s back in time, due to Statistics Denmark's data confidentiality policy. The rounding may mean that there are small discrepancies between groupings and totals. The members' share of the population in IDRAKT02 may also be affected by these roundings at intersections with gender, age and small municipalities where a low number of members occurs.

From 2022, it has been possible to report a gender identity other than male and female under a new category 'other' to the Central Register of memberships, which is the basis for these statistics. The information is based on the members' own reporting in the association's membership system. There may be uncertainty about what the category 'other' covers in the report, as it is not defined in more detail. The number of members in the new gender category will only appear from the table's total. Neither the handling of the new gender category in the data source nor the rounding has any effect on the applicability of the statistics compared with previously.