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 English|
|Interview 2||87,802||87%||Yes, DK and English|
|FFO||72,821||72%||pdf of questionnaire|
|Interview 3||70,292||69%||Yes, DK and English|
|Interview 4||66,764||65%||Yes, DK and English|
|7-year follow-up||91,256||57,282||63%||Yes, DK and English|
|11-year follow-up||90,986||49,963||55%||Yes, DK and English|
|Maternal Follow-up||78,010||43,641||55%||Yes, DK and English|
|14-year follow-up||78,651||36,599||47%||English only|
|Puberty follow-up||22,439||15,819||70%||Yes, DK and English|