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Material and methods

Scientific activity status. Background and purpose. The MoBa Study has 216 subprojects, of which 149 are active. Of these ,12 sub-studies have additional data collection and 6 sub-studies have linkages to external registries. Two of the large projects are:

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Material and methods

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  1. Scientific activity status Background and purpose The MoBa Study has216 subprojects, of which 149 are active. Of these ,12 sub-studies have additional data collection and 6 sub-studies have linkages to external registries. Two of the large projects are: The Autism Birth Cohort (ABC) Study is a collaboration between the Norwegian Institute of Public Health, Columbia University and NIH/NINDS. The ADHD Study is a collaboration between NIPH and Oslo University Hospital. MoBa is a nationwide population-based pregnancy cohort study. Recruitment started in one county in 1999, and was gradually stepped up to include all parts of Norway from 2005-2008. The aim of the study is to elucidate the aetiology and pathogenesis of disorders that may originate in early life. Material and methods Pregnant women and their partners were recruited in connection with their routine hospital ultrasound examination at week 17-19 of pregnancy. 50 hospitals in Norway participated in the study. Participation is based on informed consent. Mothers are asked to complete 3 questionnaires during pregnancy and again when the child is 6, 18 and 36 months, and further at 5, 7 and 8 years. Fathers are asked to complete one questionnaire during pregnancy. The data are linked to the Medical Birth Registry of Norway (MBRN) for pregnancy-outcome data and other information related to pregnancy. Blood samples are collected from the mother (prenatal and at birth), the father and the child (cord blood). Urine samples are collected from the mother (prenatal). DNA, RNA, whole blood, plasma and urine are aliquoted and stored at -20ºC and -80ºC, respectively. Milk teeth are collected when the child is about 7 years old. Publication status • 116 publications • 60 submitted publications • 14 Doctoral theses (PhD) • 9 Theses of Master of Science Cancer cases – status December 2009 Through linkage to the Cancer Registry we have identified all children in MoBa who received a cancer diagnosis per December 31, 2009. In totalthere are 106 cases. 41 are cases of leukemia (80 % ALL, 20 % AML). We have alsoidentified 36 cases of cancer ofthebrain/nervous system. For more information on The Norwegian Mother and Child Cohort Study go to : http://www.fhi.no/morogbarn. Data collection - status September 2011

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