Longitudinal cohort studies can provide important evidence about preventable causes of
disease, but the success relies heavily on the commitment of their participants, both at …

Purpose Despite accumulating evidence from experimental animal studies showing that
paternal environmental exposures induce genetic and epigenetic alterations in sperm which …

This is an update of the Norwegian Mother and Child Cohort Study (MoBa) cohort profile
which was published in 2006. Pregnant women attending a routine ultrasound examination …

METHODS: The study was based on the Norwegian Mother and Child Cohort Study.
Potential epilepsy cases were identified through registry linkages and parental …

Background Prenatal exposure to toxic metals or variations in maternal levels of essential
elements during pregnancy may be a risk factor for neurodevelopmental disorders such as …

Background Attrition is one of the major methodological problems in longitudinal studies. It
can deteriorate generalizability of findings if participants who stay in a study differ from those …

Importance Prenatal folic acid supplements reduce the risk of neural tube defects in children,
but it has not been determined whether they protect against other neurodevelopmental …

Background This population-based cohort study aimed to investigate the demographic and
psychosocial characteristics associated with fear of childbirth and the relative importance of …

Background Excessive gestational weight gain (GWG) is associated with pregnancy
complications, and Norwegian Health Authorities have adopted the GWG recommendations …

OBJECTIVES: To estimate the association between maternal use of acetaminophen during
pregnancy and of paternal use before pregnancy with attention-deficit/hyperactivity disorder …