7 year Follow-up

The 7-year follow-up data collection was carried out from November 2005 until July 2010.

A total of 57,000 observations were collected from the mothers (fathers) of the 7-year olds in the DNBC. Please find below the code book for the 7-year questionnaire as well as supplementary information about the data. Both documents are available in a Danish and English version. 

The 7-year follow-up questionnaire existed both in an on-line and a paper version.

7-year follow-up data documentation

Papers letters in the 7-year follow-up

The letters were sent to the parent who lived on the same address as the child.