SLiPBD links and reconciles the following existing national datasets relating to ongoing and completed pregnancies: • General hospital discharge records relating to care for a spontaneous pregnancy loss Maternity hospital discharge records relating to care for a spontaneous pregnancy loss, termination of pregnancy, or birth • Termination of pregnancy notifications • Statutory live and stillbirth registrations Key information included on all babies in SLiPBD includes estimated date of conception, end of pregnancy date, gestation, multiple pregnancy status, pregnancy outcome, and maternal sociodemographic characteristics. For live births, additional information on the birth, the baby's sociodemographic characteristics, and subsequent infant deaths is included