YOUth is a prospective cohort study with repeated measurements at regular intervals (i.e. 'waves'). Specifically, the study has two inclusion moments: YOUth Baby & Child and YOUth Child & Teenager. YOUth intends to include 6000 babies and children from Utrecht and its surrounding areas. The study includes two groups of children at two different stages of their lives.
YOUth Study Design
The first group, YOUth Baby & Child, aims to include 3000 pregnant women at 20 weeks of pregnancy, and their partners through hospitals and midwifery practices. All women presenting at these hospitals and practices for their routine visits, will be asked to participate. Recruitment has started in July 2015 and is still ongoing. The children that are being born from these pregnancies will visit our ChildResearchCenter at several moments during their lives and will be followed for at least 6 years.
The second group, YOUth Child & Teenager, aims to include 3000 children aged 8, 9 or 10 and their parents through primary schools. All eligible children at these schools receive information about the research day and a flyer to take home. Parents and children interested in participating can contact the study center and will be included. These children will visit our ChildResearchCenter every three years, for at least three times.
YOUth applies a flexible longitudinal design for the cohorts. This means that children will be measured at broader age ranges (3-year age ranges) at each wave. The main benefit of the flexible age design is that it will provide more detailed information on the neurodevelopmental curves over time.