Correspondingly, 13.5% of children born in the top parental income quintile developed a mental disorder in the same period of time. “From among the mental disorders studied, the only exception was eating disorders. “We observed that a third of the children who lived in low-income families throughout their childhood were later diagnosed with a mental disorder. The results indicate that the socioeconomic conditions in childhood are associated with the onset of mental disorders. DOI: 10.1186/s12916-020-01794-5Further information:Christian Hakulinen, university lecturer in health psychology, University of HelsinkiPhone: +358 50 448 2041Email: [email protected]