Maternal infections and medications in pregnancy: how does self-report compare to medical records in childhood cancer case-control studies?
Audrey BonaventureEleanor KaneJill SimpsonEve RomanPublished in: International journal of epidemiology (2023)
The findings highlight the scale of under-reporting and poor validity of questionnaire-based studies conducted several years after pregnancy. Future research using prospectively collected data should be encouraged to minimize measurement errors.