Objective: To examine the effect of maternal folic acid supplementation and maternal plasma folate and antiepileptic drug (AED) concentrations on language delay in AED-exposed children of mothers with epilepsy.
Methods: Children of mothers with and without epilepsy enrolled from 1999 to 2008 in the Norwegian Mother and Child Cohort study were included. Information on medical history, AED use, and folic acid supplementation during pregnancy was collected from parent-completed questionnaires.
Objective: To examine the risk of pregnancy loss in women with rheumatoid arthritis (RA).
Methods: Cumulative numbers of early miscarriages (before gestational Week 12), late miscarriages (weeks 12-22), and stillbirths reported to the Medical Birth Registry of Norway in the period 1999-2009.
Results: There were 1578 women with RA and 411,130 reference women included in the study.