Country of birth and county of residence and association with overweight and obesity—a population-based study of 219 555 pregnancies in Norway

Background The aim was to study the effect of country of birth, educational level and county of residence on overweight and obesity among pregnant women in Norway. Methods Observational study based on Medical Birth Registry Norway and Statistics Norway. The study population consisted of 219 555 deliveries in 2006–2014. Body mass index (BMI) was registered at the first antenatal care visit. Multivariate regression analysis was used to explore the...