Katy Bergstrom

Oct 6, 2023 | science.org | Guan-Hua Su |Susan Athey |Koon-Kiu Yan |Katy Bergstrom

INTRODUCTIONNearly half of all pregnancies worldwide are considered unwanted or mistimed (1). Delayed fertility is associated with improved maternal and child health outcomes, while unintended pregnancies are strongly predictive of short interpregnancy intervals, which are in turn positively associated with babies being born prematurely, at low birth weight, or small for their gestational age (2–4).