Netherlands Twin Register (NTR)
The NTR focuses on the aetiology of individual differences in health, fertility, development, growth and behaviour. Over 270,000 twins and triplets, their family members and their teachers have been recruited, beginning in 1987 in the Netherlands. The NTR includes the Young NTR (YNTR) and Adult NTR (ANTR). Participants in the YNTR are twins and triplets under the age of 18 years, as well as their siblings, parents and teachers. Most families in the YNTR complete baseline data collection when twins and triplets are under 1 year old, When YNTR participants turn 18 years old, they can register with the ANTR. In addition to YNTR participants, ANTR has recruited further adult twins and their family members. Both ANTR and YNTR participants are followed up every 2 to 3 years. Recruitment and data collection is ongoing.
Study design
Registry, Cohort - twin, Cohort
Number of participants at first data collection
24,784 (teachers, as of 2019)
255,785 (twins and their family members, as of 2019)
Recruitment is ongoing
Age at first data collection
Varied (teachers)
Varied (twins and their family members)
Participant year of birth
Varied (teachers)
Varied (twins and their family members)
Participant sex
All
Representative sample at baseline?
No
Sample features
Country
Year of first data collection
1987
Primary Institutions
Vrije Universiteit Amsterdam (VU Amsterdam)
Profile paper DOI
Funders
Avera Institute for Human Genetics (AIHG)
Biobanking and Biomolecular Resources Research Infrastructure (BBMRI)
Brain and Behavior Research Foundation (BBRF)
Center for Medical Systems Biology (CMSB)
EMGO+ Institute for Health and Care Research
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Interview – face-to-face
- Interview – phone
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- Wearable devices
- Self-completed questionnaire – online
- Self-completed questionnaire – paper or computer assisted
- None
- Diffusion Tensor Imaging (DTI)
- Electroencephalography (EEG)
- Functional magnetic resonance imaging (fMRI)
- Magnetic Resonance Imaging (MRI)
- Magnetoencephalography (MEG)
- None
Engagement
Keywords
Consortia and dataset groups
