OBJECTIVE: To identify independent risk factors for placenta accreta spectrum among pregnancies conceived with assisted reproductive technology. DESIGN: Retrospective cohort study. SETTING: Tertiary hospital. PATIENTS: Individuals who co…
OBJECTIVE: To define specific risk factors for placenta previa in pregnancies conceived with assisted reproductive technology (ART). DESIGN: Retrospective cohort. SETTING: Fertility centers and inpatient obstetric units in Massachusetts. …
BACKGROUND: Contemporary embryo biopsy in the United States involves the removal of several cells from a blastocyst that would become the placenta for preimplantation genetic testing. Embryos are then cryopreserved while patients await biop…
PURPOSE: We previously developed a subfertile comparison group with which to compare outcomes of assisted reproductive technology (ART) treatment. In this study, we evaluated whether insurance claims data in the Massachusetts All Payers Cla…
OBJECTIVE: To compare neonatal health outcomes after fresh versus frozen ET (FET). DESIGN: Retrospective analysis of a population-based database of linked clinically assisted reproductive technology (ART) data with state vital records. Mul…
OBJECTIVES: To assess the risk of adverse health outcomes for infants after assisted reproductive technology (ART)-treated and subfertile as compared with fertile deliveries. METHODS: Live-born singleton infants ≥23 weeks' gestational age …
BACKGROUND: It is unknown whether the risk of adverse outcomes in twin pregnancies among subfertile women, conceived with and without in vitro fertilization, differs from those conceived spontaneously. OBJECTIVE: We sought to evaluate the …
PURPOSE: The aim of this study is to evaluate frequency of hospitalization before, during, and after assisted reproductive technology (ART) treatment by cycle outcome. METHODS: Six thousand and one hundred thirty women residing in Massachu…
BACKGROUND: Births to subfertile women, with and without infertility treatment, have been reported to have lower birthweights and shorter gestations, even when limited to singletons. It is unknown whether these decrements are due to parenta…
PURPOSE: The objective of this study was to evaluate the effect of changing fertility status on perinatal outcomes of singleton siblings, conceived with and without assisted reproductive technology (ART). METHOD: A longitudinal cohort stud…
OBJECTIVE: To assess whether risk of severe maternal morbidity at delivery differed for women who conceived using assisted reproductive technology (ART), those with indicators of subfertility but no ART ("subfertile"), and those who had nei…
OBJECTIVE: To compare the risks for adverse pregnancy and birth outcomes by diagnoses with and without assisted reproductive technology (ART) treatment to non-ART pregnancies in fertile women. DESIGN: Historical cohort of Massachusetts vit…
OBJECTIVE: To evaluate risks for adverse pregnancy outcomes by number of embryos transferred (ET) and fetal heartbeats (FHB) in assisted reproductive technology-conceived singleton live births. DESIGN: Longitudinal cohort using cycles repo…
OBJECTIVE: To compare on a population basis the birth outcomes of women treated with assisted reproductive technologies (ART), women with indicators of subfertility but without ART, and fertile women. DESIGN: Longitudinal cohort study. SE…
OBJECTIVE: To identify a group of deliveries to mothers with indicators of subfertility (SUBFERTILITY). DESIGN: Longitudinal cohort study. SETTING: Hospital. PATIENT(S): A total of 334,152 deliveries to Massachusetts mothers in a Massach…
PURPOSE: To compare ages of mothers and of fathers at delivery in couples who are fertile, subfertile, and subfertile treated with assisted reproductive technology (ART) and to characterize birth outcomes in the ART population according to …