1Department of Obstetrics and Gynecology, Turku University Hospital and University of Turku, Turku, Finland
2Pediatric Research Center, Child Psychiatry, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
3National Institute for Health and Welfare, Helsinki, Finland
4FinnBrain Birth Cohort Study, Turku Brain and Mind Center, Institute of Clinical Medicine, University of Turku, Turku, Finland
5Department of Psychology, University of Turku, Turku, Finland
6Department of Child Psychiatry , Turku University Hospital and University of Turku , Turku, Finland
7Centre for Population Health Research, Turku University Hospital and University of Turku, Turku, Finland
8Department of Psychiatry, Turku University Hospital and University of Turku, Turku, Finland
9Sleep Research Unit, Department of Physiology, University of Turku, Turku, Finland