About Louisville Twin Study

Louisville Twin Study

The Louisville Twin Study was internationally recognized as one of the oldest, largest, and most comprehensive studies of child development related to multiple birth status and is unique because of the extensive, longitudinal assessments and because of the relatively low rate of mobility out of the Louisville area. This low rate of immobility is important because it increases the likelihood that the participants or some of their family members may still be in the Louisville area and, thus, may be available for future studies. The Louisville Twin Study data consists of extensive longitudinal evaluations of child factors such as temperament, personality, cognitive abilities, physical growth, health status, accidental injuries, and school achievement from birth through adolescence. Genetic data were collected on a sub-sample of the twins and their families.

Until recently, the Louisville Twin Study was closed and the data were in storage. Efforts are currently underway to ensure that the Louisville Twin Study data are preserved and converted to newer data formats. The Louisville Twin Study was an important part of the history of the University of Louisville and the Department of Pediatrics. Participants contributed significantly to our understanding of the complex interactions between genes and the environment. Twin and family studies provide a unique method to examine the many factors that contribute to developmental and health outcomes of children and to understand the underlying processes responsible for individual differences in those outcomes. We appreciate the willingness of the former participants to take part in such an important project. We also appreciate the creativity, dedication, and hard work of the former researchers and staff members who worked diligently over many years to develop and execute the studies that make up the Louisville Twin Study.

In addition to archiving the previously collected data, efforts began in mid-2008 to locate previous participant.  Former participant who are now adults will be recruited into a new study of adult health. A variety of methods will be used to locate former participants. If you formerly participated in the Louisville Twin Study, we would love to hear from you. If you know someone who may have participated, we would appreciate you sharing this information with him or her. While we are not currently enrolling new twins, we may develop new research projects in the future involving twins who did not previously participate.