East Flanders Prospective Twin Survey (EFPTS)
EFPTS is a population-based and prospective registry of multiple births in the province of East Flanders, Belgium. Since its inception in July 1964 at Ghent University, Department of Obstetrics, over 10,000 twin-pairs have been registered. The twins (and higher order multiple births) are recruited at birth. Basic perinatal data are recorded, and chorion type and zygosity are established. Since 1969, placental biopsies have been taken.
Study design
Cohort - birth, Cohort, Biobank
Number of participants at first data collection
5,089 (twin pairs)
Recruitment is ongoing
Age at first data collection
Birth (participants)
Participant year of birth
1964 (participants)
Participant sex
All
Representative sample at baseline?
The total twin population of East Flanders, Belgium between 1964 and 2019.
Sample features
Country
Year of first data collection
1964
Primary Institutions
Ghent University (Universiteit Gent, UGent)
Hasselt University (Universiteit Hasselt, UHasselt)
Maastricht University (Universiteit Maastricht, UM)
Profile paper DOI
Funders
Association for Scientific Research in Multiple Births
Foundation for Dutch Scientific Research Institutes
Fund for Scientific Research
Marguerite-Marie Delacroix Foundation
University of Ghent
Ongoing?
Yes
Data types collected
- Computer, paper or task testing (e.g. cognitive testing, theory of mind doll task, attention computer tasks)
- Physical environment assessment (e.g. pollution, mould)
- Physical or biological assessment (e.g. blood, saliva, gait, grip strength, anthropometry)
- Secondary data
- Self-report questionnaire – paper or computer assisted
- None
- None
- Healthcare data
Engagement
Keywords
Consortia and dataset groups
