© 2017 Elsevier Ltd GBD 2015 Maternal Mortality Collaborators. Global, regional, and national levels of maternal mortality, 1990–2015: a systematic analysis for the Global Burden of Disease Study 2015. Lancet 2016; 388: 1775–812—In this Article, an extra affiliation has been added for Simon I Hay. The affiliation for Monica Cortinovis has been edited. The funding statement for Simon I Hay has been added. These corrections have been made to the online version as of Jan 5, 2017.