Since the completion of the initial 4 computer-assisted telephone interviews the DNCB has expanded the data collection with several data sweeps throughout offspring childhood and youth and also among mothers.
In this section you will find information about DNBC questionnaires and data available.
You may ask for data from:
Enrollments and response rates
|Data sweep||Invited||Responders||Response rate||Codebook|
|Interview 1||92,892||92%||Yes, DK and UK|
|Interview 2||87,802||87%||Yes, DK and UK|
|FFO||66,874||66%||pdf of questionnaire|
|Interview 3||70,292||69%||Yes, DK and UK|
|Interview 4||66,764||65%||Yes, DK and UK|
|7-year follow-up||91,256||57,282||63%||Yes, DK and UK|
|11-year follow-up||90,986||49,963||55%||Yes, DK and UK|
|Maternal Follow-up||78,010||43,641||55%||DK version only|
|Puberty follow-up (ongoing)||22,439||14,756||66%, as per Nov 2018|
|18-year follow-up (ongoing)||43,265||21,767||50%, as per Nov 2018|