MoBa was initiated in 1999 and is conducted by the Norwegian Institute of Public Health (NIPH). The cohort has enrolled more than 95 000 mothers and include 114 000 children.
MoBa is a family structured cohort study that aims to find causes of diseases and explain variation in health-related traits in a life course span. In addition, the cohort is well equipped to study trajectories of disease. The diseases can occur during pregnancy, in children or in adult men and women. Research questions are related to environmental factors, such as medications, nutrition, infections, work exposure and mental health. Genetic factors as well as the interplay between genes and the environment will be studied.