Oxazepam (Epilepsy)

Study	Type of data	Exposure measurement	Outcome assessment	Adjustment
Mawer (Epilepsy) (Controls exposed to Lamotrigine, sick), 2010	prospective cohort	The research nurse recorded personal and medical history with forms. An epilepsy specialist confirmed antiepileptic medication. Information from the patient was supplemented from clinical records.	Congenital abnormalities were identified from reports of fetal scans and paediatric medical examination of the baby before discharge. Major malformations were distinguished from minor anomalies using Eurocat instructions and those with chromosome abnormalities were not included.	No matching for this group of comparison. No adjustement.
Mawer (Epilepsy) (Controls unexposed, disease free), 2010	prospective cohort	The research nurse recorded personal and medical history with forms. An epilepsy specialist confirmed antiepileptic medication. Information from the patient was supplemented from clinical records.	Congenital abnormalities were identified from reports of fetal scans and paediatric medical examination of the baby before discharge. Major malformations were distinguished from minor anomalies using Eurocat instructions and those with chromosome abnormalities were not included.	Matched for age (within a five-year band), for parity, for residential district (postal code) and employment. No adjustement.
Mawer (Epilepsy) (Controls unexposed, sick), 2010	prospective cohort	The research nurse recorded personal and medical history with forms. An epilepsy specialist confirmed antiepileptic medication. Information from the patient was supplemented from clinical records.	Congenital abnormalities were identified from reports of fetal scans and paediatric medical examination of the baby before discharge. Major malformations were distinguished from minor anomalies using Eurocat instructions and those with chromosome abnormalities were not included.	No matching for this group of comparison. No adjustement.

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