- Medication and Pregnancy KB

Study	Type of data	Exposure measurement	Outcome assessment	Adjustment
Bànhidy (Mephenytoin), 2011	case control	Mothers were mailed a questionnaire (after the selection of cases and controls) requested information on medicinal products taken during pregnancy and to send their prenatal maternity logbook and other medical records. Regional nurses were asked to visit and question the non-respondent.	Notification of cases with congenital abnormality is mandatory for physicians to the HCAR. Pathologists sent a copy of autopsy report for stillbirths and infant deaths cases and defect diagnosed in prenatal diagnostic centers with or without termination of pregnancy were also included.	Matched according to sex, birth week in the year when cases were born, and district of parents’ residence.
Czeizel (Mephenytoin), 1992	case control	Mothers were mailed a questionnaire requested information on medicinal products taken during pregnancy and to send their prenatal maternity logbook which related drug prescriptions. Regional nurses were asked to visit and question the non-respondent.	Notification of cases with congenital abnormality is mandatory for physicians to the HCAR. Pathologists sent autopsy report for stillbirths and infant deaths cases. Prenatally diagnosed and electively terminated malformed fetuses have also been registered.	None.