Deborah A. Lawlor

ABSTRACT Background Endometriosis is associated with adverse pregnancy outcomes in standard observational studies, including placental complications, preterm birth, and caesarean delivery. However, causal inference from these studies is com…

Menstrual symptoms may negatively impact academic achievement, but rigorous population-based studies are lacking. 2,698 participants from the Avon Longitudinal Study of Parents and Children (ALSPAC) self-reported heavy or prolonged bleeding…

OBJECTIVE: To study the relationship between conception by assisted reproductive technology (ART) and risk of endometriosis/adenomyosis in female offspring. DESIGN: National registry-based cohort study. SUBJECTS: We studied 449,611 female…

STUDY QUESTION: Are cardiovascular disease (CVD) risk factors causally associated with higher risk of infertility among women and men? SUMMARY ANSWER: We found evidence to support a causal relationship between smoking initiation and histor…

Genome-wide association studies (GWASs) may help inform treatments for infertility, whose causes remain unknown in many cases. Here we present GWAS meta-analyses across six cohorts for male and female infertility in up to 41,200 cases and 6…

IMPORTANCE: The use of assisted reproductive technologies (ARTs) is steadily increasing worldwide. The outcomes associated with treatment for an individual's long-term health, including risk of cardiovascular disease (CVD), remain largely u…

OBJECTIVES: To investigate whether risks of stillbirth and neonatal death differ after fresh embryo transfers (fresh-ETs) and frozen embryo transfers (frozen-ETs) compared with singletons conceived without medical assistance. DESIGN: A pop…

Age at natural menopause (ANM) is associated with a range of health-related traits, including bone health, female reproductive cancers, and cardiometabolic health. Our objective was to conduct a Mendelian randomization phenome-wide associat…

A few studies indicate that women with prolonged time-to-pregnancy (TTP) have an increased risk of cardiovascular disease (CVD). This has not been studied in men. We evaluated CVD risk by self-reported TTP among parous women (n = 64,064) an…

BACKGROUND: Women with diminished ovarian reserve are known to have increased cardiovascular risk, whether there is a continuous association between the ovarian reserve biomarkers; anti-Müllerian hormone (AMH), antral follicle count (AFC) a…

BACKGROUND: It is not known whether segmentation of an in vitro fertilisation (IVF) cycle, with freezing of all embryos prior to transfer, increases the chance of a live birth after all embryos are transferred. METHODS: In a prospective st…