Statistical processing

Source data

The primary source for these statistics are internal Statistics Denmark sources including:

• The Population
• Urban areas

Frequency of data collection

Annually

Data collection

Data are collected directly from administrative registers

Data validation

The data validation happens in the publishing proses of population statistics, and is documented there.

Data compilation

Family relatives are identified using the parent-child in CPR and partner-relations using information on shared home addresses.

Children and parents are identified directly via the parent-child connection in CPR.

It is a condition that a partner shares address with the main character. A partner is further found in one of the following conditions:

• Married. The two persons are married (and not divorced again). This is also applicable to same gender couples.
• Cohabiting couples: Two persons, not married to each other, but have at least one shared child according to CPR.
• Couples living together: Two persons, mixed gender, with an age gap of less than 15 years. They don't have a shared child and as far as can be identified in CPR are not close family relatives.

Children-in-law are identified accordingly, as partners of the main characters children.

Siblings might share one or both parents according to the parent-child connection in CPR.

Grandparents are identified by finding the parents of the main characters parents in CPR.

Grandchildren are identified by finding the children of the main characters children in CPR.

Calculating the distance: For the measurement year 2023 in calculating the precise distance between inhabited address a road map and the GIS-program ArcGis is used. This method of calculation takes into account that the shortest distance might include bridges and ferries. For all other years of measurement, it is only the birds-eye-view that is calculated. See more in the chapter "Corrections".

Adjustment

In publishing the register of relatives 2025, a correction was made to all previously published years, including the birds-eye-view distance between all relatives. Previously birds-eye-view was only calculated for the year2023. The calculations has been made to improve quality and does not affect the number of relative relations nor the number of individuals. It is the intent to publish distance by roadmap in the future. This means there 's expected to be published a version two of the register for 2025. It is not expected that this will affect already published statistics.