Morton B Brown

STUDY QUESTION: Is there an association between fertility status, method of conception and the risks of birth defects and childhood cancer? SUMMARY ANSWER: The risk of childhood cancer had two independent components: (i) method of concepti…

PURPOSE: Excess embryos transferred (ET) (> plurality at birth) and fetal heartbeats (FHB) at 6 weeks' gestation are associated with reductions in birthweight and gestation, but prior studies have been limited by small sample sizes and limi…

STUDY QUESTION: What is the association between ART conception and treatment parameters and the risk of birth defects? SUMMARY ANSWER: Compared to naturally conceived singleton infants, the risk of a major nonchromosomal defect among ART s…

BACKGROUND: Although in vitro fertilization has been associated with an increased risk for hypertensive disorders of pregnancy, the association of risk with in vitro fertilization treatment parameters is unclear. OBJECTIVE: To evaluate ris…

IMPORTANCE: In vitro fertilization (IVF) is associated with birth defects and imprinting disorders. Because these conditions are associated with an increased risk of childhood cancer, many of which originate in utero, descriptions of cancer…

PURPOSE: To evaluate the risk of prematurity and infant mortality by maternal fertility status, and for in vitro fertilization (IVF) pregnancies, by oocyte source and embryo state combinations. METHODS: Women in 14 States who had IVF-conce…

BACKGROUND: Over the past 2 decades the characteristics of women giving birth in the United States and the nature of the births themselves have changed dramatically, with increases in older maternal age, plural births, cesarean deliveries, …

STUDY QUESTION: How do the assisted reproductive technology (ART) outcomes of women presenting for ART after cancer diagnosis compare to women without cancer? SUMMARY ANSWER: The likelihood of a live birth after ART among women with prior …

PURPOSE: The purpose of the present study is to estimate the proportion of women with cancer who return to use the embryos that they have banked and to compare this proportion to that of women without cancer who bank embryos. METHODS: This…

OBJECTIVE: The purpose of this study was to use a validated prediction model to examine whether single embryo transfer (SET) over 2 cycles results in live birth rates (LBR) comparable with 2 embryos transferred (DET) in 1 cycle and reduces …

OBJECTIVE: To evaluate the risk of cancer after assisted reproductive technology (ART) therapy. DESIGN: Longitudinal cohort study. SETTING: Not applicable. PATIENT(S): New York, Texas, and Illinois residents between 2004 and 2009, treate…

OBJECTIVE: To evaluate the correlation between total gonadotropin dose and live birth rate. DESIGN: Retrospective analysis. SETTING: Not applicable. PATIENT(S): A total of 658,519 fresh autologous cycles of in vitro fertilization (IVF) r…

OBJECTIVE: To develop a model predictive of live-birth rates (LBR) and multiple birth rates (MBR) for an individual considering assisted reproduction technology (ART) using linked cycles from Society for Assisted Reproductive Technology Cli…

OBJECTIVE: To model morphological assessments of embryo quality that are predictive of live birth. DESIGN: Longitudinal cohort using cycles reported in the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System (SART…

PURPOSE: This study uses linked cycles of assisted reproductive technology (ART) to examine cumulative live birth rates, birthweight, and length of gestation by diagnostic category. METHODS: We studied 145,660 women with 235,985 ART cycles…

ObjectiveTo evaluate the effect of a prior assisted reproductive technology (ART) live birth on subsequent live-birth rates.DesignHistorical cohort study.SettingClinic-based data.Patient(s)The study population included 297,635 women with 54…

OBJECTIVE: To evaluate factors associated with the use of elective single embryo transfer (eSET) and its effect on assisted reproductive technology (ART) outcome. DESIGN: Historical cohort. SETTING: Clinic-based data. PATIENT(S): A total…

OBJECTIVE: To evaluate ethnic differences in assisted reproductive technology (ART) outcomes in the United States. DESIGN: Historical cohort study. SETTING: Clinic-based data. PATIENT(S): A total of 139,027 ART cycles from the Society fo…

OBJECTIVE: To evaluate the risks of pregnancy complications and adverse outcomes associated with increasing maternal age and higher plurality. DESIGN: Population-based, historic cohort study. SETTING: US birth certificates and infant deat…