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 |
---|---|---|---|---|---|---|---|---|---|
Bonnot 2003 |
France 1976 - 1997 case control |
European Institut of Genomutations (IEG), Lyon, France. | Infants with the studied congenital malformation. | Infants with a malformations other than this one studied. | The medical records are checked to obtain data on treatment intake and other exposures or risks. | 1st trimester | -9 / -9 | Total number of infants with a congenital malformation is 13703, but the number of cases changes according to the studied malformations. Raw data not sufficient to calculate OR (data for 'control' groups not available). | |
After having defined a population, often on geographical criteria, these networks set up birth observatories in order to exhaustively identify neonatal malformations in their reference population. |
Risk of bias: : NA; : low; : moderate; : serious; : critical; : unclear;