Prescription medication use and baseline health status of women with live-birth deliveries in a national data network

Similarities between the linked and not linked cohorts suggest that the ability to link mother and infant records is not influenced by maternal health status. In the linked cohort, the prevalence of specific pregnancy complications and medication use was similar to previously reported national estimates. Some baseline comorbidities, such as obesity and smoking, may be underestimated in the Sentinel MIL.