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Cohort details

Identification
Cohort name: DNBC
Country: Denmark
Principal investigator: Jørn Olsen (jo@soci.au.uk)
Contact for environmental exposures: Jørn Olsen (jo@soci.au.uk)
Basic information
Source population: Nation-based
Describe selection:
Geographical coverage: Denmark
Calendar period: 1996-2002
Enrolment Status: Completed
Developmental period of enrolment:
  • Pre-pregnancy
  • Pregnancy Pregnancy weeks: 6-24w
  • Birth
  • Postnatal
Expected number of participants at enrolment when enrolment completed:
  • Mothers: 100418
  • Fathers: -----
  • Children: 96986
Expected duration of follow-up: questionnaire at age 6m, 18m, 7y, 11y and planned to carry on lifelong
Enrolment criteria: - Inclusion: pregnancy intended to be carried to end
- Inclusion: pregnant women being able to take part in a telephone interview in Danish
Type of data collection
  Pregnancy Birth Post Natal
  First
trimester
Second
trimester
Third
trimester
  0-6
months
7-18
months
18-60
months
5-10
years
10+
years
Child
Questionnaire Exposures - - - - 96841 96841 - 96841 -
Questionnaire Outcomes - - - 96986 96841 96841 96841 96841 96841
Cord Blood       101033          
Blood - - - - X - - - -
Urine - - - - - - - - -
Hair - - - - - - - - -
Nails - - - - - - - - -
Saliva - - - - - - - - -
Breast Milk       - - - -    
Mother
Questionnaire Exposures 91827 91827 91827 - - - - - 91827
Questionnaire Outcomes 91827 91827 91827 - - - - - 91827
Cord Blood       -          
Blood 91827 91827 - - - - - - -
Urine - - - - - - - - -
Hair - - - - - - - - -
Nails - - - - - - - - -
Saliva - - - - - - - - -
Breast Milk       - - - -    
Other information
Have genetic analysis been performed: yes Year planned:
Details:
Genes:
Addresses available:
  • Home: Residential history
  • Mother work: No
  • Child school: No
Were these addresses geocoded:
Time activity patterns:
  • Child
    • Questionnaire: No
    • Diary: No
  • Mother
    • Questionnaire: No
    • Diary: No
Sociodemographic variables:
  • Mother's social class: Yes
  • Father's social class: Yes
  • Mother's education: Yes
  • Father's education: Yes
  • Mother's ethnic origin: No
  • Father's ethnic origin: No
  • Maternal age: Yes
  • Paternal age: Yes
  • Social class coding system: Anne-Marie´s system . Based on ISCO : high rank prof, low rank prof, skilled workers, unskilled workers, students, economically …? )
  • Household income: No
  • Parity: Yes
  • Birth order: Yes
  • Child sex: Yes
Breastfeeding:
  • Weeks of breastfeeding: Yes
  • Weeks of exclusive breastfeeding: No
Diet and physical exercise:
  • Dietary assessments: Yes
    • FFQ: Yes
    • 24h recall: No
    • Other dietary assessment: No
    • Child: Yes Timing: 6m, 15m, 7y, 11y
    • Mother: Yes Timing: 12w; 26w
  • Assessment of physical exercise: Yes
    • Questionnaire: Yes
    • Measurement: No
    • Child: Yes Timing:7y, 11y
    • Mother: Yes Timing:pregnancy
Medical history:
  • Family history: No
  • Pre-Pregnancy medical history: Yes
  • Pregnancy complications:
    • Blood preasure measurements: Yes
    • Maternal hypertension: Yes
    • Preeclampsia: Yes
  • Maternal allergic history: Yes
  • Maternal pregnancy weight, height: Yes
  • Paternal allergic history: Yes
  • Paternal weight, height: No
  • Maternal pre-pregnancy weight, height: Yes
Exposures and Outcomes
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