Study | Country Study period Study design |
Data source | Exposure definition | Non-exposure definition | Exposition period | Sample size (exposed/unexposed) Or (case / control) |
Remarks | Risk of bias |
---|
Study | Country Study period Study design |
Data source | Case | Control | Exposition | Exposition period | Sample size (exposed/unexposed) Or (case / control) |
Remarks | Risk of bias |
---|---|---|---|---|---|---|---|---|---|
Czeizel (Norsuximidium) 1992 |
Hungary 1980 - 1987 case control |
The Hungarian Case-Control Surveillance of Congenital Anomalies. | Children affected with congenital abnormalities born from treated or untreated mothers. | Children without congenital abnormalities born from treated or untreated mothers. | 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. | throughout pregnancy | 100 / 54 | The study design was partly completed thanks to the reference [6] cited in the publication (as the definition of congenital abnormalities). | |
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. |
Risk of bias: : NA; : low; : moderate; : serious; : critical; : unclear;