ArticleAmerican journal of obstetrics and gynecology2013
The risk of stillbirth and infant death by each additional week of expectant management stratified by maternal age.
Article in American journal of obstetrics and gynecology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
13 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Effects of induction of labor prior to post-term in low-risk pregnancies: a systematic review.JBI database of systematic reviews and implementation reports · 2019Pooled it
- Study protocol FRENCH-ARRIVE: labor induction in low-risk nulliparous women at 39 weeks of gestation to reduce cesarean births: a randomized trial of induction versus expectant management in France.BMC pregnancy and childbirth · 2026Trial
- Maternal and neonatal outcomes in full-term pregnancies of very advanced maternal age: a Japanese single-center retrospective cohort study.BMC pregnancy and childbirth · 2025Article
- Unplanned cesarean sections in advanced maternal age: A predictive model.Acta obstetricia et gynecologica Scandinavica · 2024Article
- Intrauterine Growth Restriction and Placenta Previa: A Clinical Case Report of an Advanced-Age Pregnancy.Cureus · 2024Article
- The influence of timing of oocytes retrieval and embryo transfer on the IVF-ET outcomes in patients having bilateral salpingectomy due to bilateral hydrosalpinx.Frontiers in surgery · 2022Article
- Neonatal and Maternal Composite Adverse Outcomes Among Low-Risk Nulliparous Women Compared With Multiparous Women at 39-41 Weeks of Gestation.Obstetrics and gynecology · 2020Observational
- Risk of adverse pregnancy outcomes of late- and postterm pregnancies in advanced maternal age: A national cohort study.Acta obstetricia et gynecologica Scandinavica · 2020Article
- The effect of maternal age on fetal and neonatal mortality.Journal of perinatology : official journal of the California Perinatal Association · 2017Article
- Gestational age-specific neonatal morbidity among pregnancies complicated by advanced maternal age: a population-based retrospective cohort study.The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2016Article
- The mortality risk of expectant management compared with delivery stratified by gestational age and race and ethnicity.American journal of obstetrics and gynecology · 2014Article
- Reduction in stillbirths at term after new birth induction paradigm: results of a national intervention.BMJ open · 2014Article
- Fetal, neonatal and infant death and their relationship to best gestational age for delivery at term: is 39 weeks best for everyone?Journal of perinatology : official journal of the California Perinatal Association · 2014Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
objectiveThe objective of the study was to examine fetal/infant mortality by gestational age at term stratified by maternal age. STUDY
designA retrospective cohort study was conducted using 2005 US national birth certificate data. For each week of term gestation, the risk of mortality associated with delivery was compared with composite mortality risk of expectant management. The expectant management measure included stillbirth and infant death. This expectant management risk was calculated to estimate the composite mortality risk with remaining pregnant an additional week by combining the risk of stillbirth during the additional week of pregnancy and infant death risk following delivery at the next week. Maternal age was stratified by 35 years or more compared with women younger than 35 years as well as subgroup analyses of younger than 20, 20-34, 35-39, or 40 years old or older.
resultsThe fetal/infant mortality risk of expectant management is greater than the risk of infant death at 39 weeks' gestation in women 35 years old or older (15.2 vs 10.9 of 10,000, P < .05). In women younger than 35 years old, the risk of expectant management also exceeded that of infant death at 39 weeks (21.3 vs 18.8 of 10,000, P < .05). For women younger than 35 years old, the overall expectant management risk is influenced by higher infant death risk and does not rise significantly until 41 weeks compared with women 35 years old or older in which it increased at 40 weeks.
conclusionRisk varies by maternal age, and delivery at 39 weeks minimizes fetal/infant mortality for both groups, although the magnitude of the risk reduction is greater in older women.
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