What twin pregnancies may tell us about associations of fertility and adverse pregnancy outcomes with long‐term maternal health

Abstract

Sometimes natural 'experiments' shed light upon questions of public health importance. The study by Mitro and colleagues 1 of the longterm maternal mortality associated with carrying multifetal pregnancies illuminates two ongoing debates: the extent to which parity and adverse pregnancy outcomes (APOs) are causally related to future maternal health. The available data to parse questions of cause How to cite this article: Rich-Edwards JW. What twin pregnancies may tell us about associations of fertility and adverse pregnancy outcomes with long-term maternal health.