Measuring the invisible: perinatal health outcomes of unregistered women giving birth in Belgium, a population-based study

Abstract Background The unregistered population remains under-researched because of its “invisible” status in statistics. Studies on perinatal health outcomes of unregistered women remains particularly limited. Our objectives were 1) to describe the sociodemographic profiles of women who are not legally residing in Belgium and 2) to analyze the associations of registration status with pregnancy outcomes according to socioeconomic status and nationality. Methods We analysed data from birth and death certificates taken from the Belgian civil registration system, linked with the National Populati... Mehr ...