DNBC Interviews 1 - 4
The four computer-assisted telephone interviews were carried out in gestational week 12 and 30 as well as when the child was 6 and 18 months old. Each interview lasted approx. 10-15 minutes.
Focus areas in the two pre-natal questionnaires
- Earlier pregnancies and childbirths, IVF treatment
- Health in general and during pregnancy as well as medical pregnancy examinations
- Drug use
- Work environment
- Home environment
- Diet - vitamins - dietary supplements
- Use of alcohol and tobacco
- Sleep
- Exercise
- Oestrogen
- Socio-economic variables
- Psycho-social stress
Focus areas in the two post-natal questionnaires
- Child diet
- Child development
- Child vaccinations
- Follow-up on pre-natal questions
Code books for all four interviews
English version of code books for interviews 1 - 4
Danish version of code books for interviews 1 - 4
The interviews were carried out under DNBC supervision
The interviewer guides - ind Danish - were drafted by DNBC supervisors in collaboration with the phoning companies.The guides contain guidelines for the interviewer for every question.