| Study | Country Study period | Population source | Exposure definition | Non-exposure definition | Sample size | Rmk | 
|---|
| Study | Country Study period | Case | Control | Sample size | Rmk | 
|---|---|---|---|---|---|
| Bànhidy (Morsumide), 2011 | Hungary 1980 - 1996 | Children affected with congenital abnormalities and who had mothers with medically recorded epilepsy. | Newborn infants without congenital abnormality and who had mothers with medically recorded epilepsy. | 95 / 90 | Congenital abnormalities syndromes caused by major mutant genes or chromosomal aberrations with preconceptional origin were excluded. Exposure period completed with Czeizel 1992. |