Educational Outcomes for Children at 7 to 9 Years of Age After Birth at 39 vs 40 to 42 Weeks' Gestation.

Importance: Birth at 39 weeks' gestation is common and thought to be safe for mother and neonate. However, findings of long-term outcomes for children born at this gestational age have been conflicting.

Objective: To evaluate the association of birth at 39 weeks' gestation with childhood numeracy and literacy scores at ages 7 to 9 years compared with birth at 40 to 42 weeks' gestation.

School-age outcomes among IVF-conceived children: A population-wide cohort study.

Background: In vitro fertilisation (IVF) is a common mode of conception. Understanding the long-term implications for these children is important. The aim of this study was to determine the causal effect of IVF conception on primary school-age childhood developmental and educational outcomes, compared with outcomes following spontaneous conception.

Developmental Outcomes for Children After Elective Birth at 39 Weeks' Gestation.

Importance: Elective births at 39 weeks' gestation are increasing. While this option may improve maternal and perinatal outcomes compared with expectant management, longer-term childhood developmental outcomes are uncertain.

Objective: To investigate the association between elective birth at 39 weeks' gestation and the risk of childhood developmental vulnerability.

The incidence of hypertensive disorders of pregnancy following sperm donation in IVF: an Australian state-wide retrospective cohort study.

Study Question: Does IVF using donor sperm increase the risk of hypertensive disorders of pregnancy and fetal growth restriction (FGR)?

Summary Answer: IVF conceptions arising from sperm donation are not associated with an increased risk of hypertensive disorders of pregnancy or FGR.

What Is Known Already: It has been hypothesized that the absence of prior exposure to factors within the paternal ejaculate increases the risk of preeclampsia and FGR among nulliparous women or women with a new partner-the concept of 'primipaternity'. It remains unclear which element of the ejaculate is responsible: the sperm cell or the constituents of seminal fluid.

Identification of the optimal growth charts for use in a preterm population: An Australian state-wide retrospective cohort study.

Background: Preterm infants are a group at high risk of having experienced placental insufficiency. It is unclear which growth charts perform best in identifying infants at increased risk of stillbirth and other adverse perinatal outcomes. We compared 2 birthweight charts (population centiles and INTERGROWTH-21st birthweight centiles) and 3 fetal growth charts (INTERGROWTH-21st fetal growth charts, World Health Organization fetal growth charts, and Gestation Related Optimal Weight [GROW] customised growth charts) to identify which chart performed best in identifying infants at increased risk of adverse perinatal outcome in a preterm population.

Feasibility of implementing magnesium sulphate for neuroprotection in a tertiary obstetric unit.

Background: It is important to establish whether research recommendations regarding magnesium sulphate for neuroprotection can be readily translated into clinical practice and achieve the dual objectives of good coverage of the target group, while minimising unnecessary or prolonged exposure to treatment.

Methods: This retrospective cohort study included all women admitted to a tertiary obstetric centre at 23-32 weeks gestation in the first 12 months following implementation of the guideline 'Magnesium sulphate for the prevention of cerebral palsy'. We determined the number triaged to receive magnesium sulphate, the proportion of infants who received magnesium sulphate prior to delivery and the total number of doses administered.