A comparison of infants' birth defects self‐reported by mothers with data provided by general practitioners: Data from the Dutch Pregnancy Drug Register

Abstract Background Since the presence of a birth defect is often a primary outcome in drug‐safety studies among pregnant women, researching the validity of data collection methods is imperative. The aim of this study is to compare self‐reported birth defects in infants by mothers with the information provided by general practitioners (GP (singular) or GPs (plural)). Methods Mothers who participated in the Dutch Pregnancy Drug Register reported information about possible birth defects of their infants via questionnaires. GPs were approached to provide information on possible birth defects of t... Mehr ...