ArticlePaediatric and perinatal epidemiology2012
California Very Preterm Birth Study: design and characteristics of the population- and biospecimen bank-based nested case-control study.
Article in Paediatric and perinatal epidemiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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.
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Who cites it
12 citing papers in PubMed, 17 citations in OpenAlex.
- Effects of Prenatal Micronutrient Supplementation on Spontaneous Preterm Birth: A Double-Blind Randomized Controlled Trial in China.American journal of epidemiology · 2017Trial
- Molecular Reactivity in Maternal Pregnancy Blood and Neonatal Dried Blood Spots Is Associated with the Risk of Pediatric Acute Lymphoblastic Leukemia.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2025Article
- Metabolite Stability in Archived Neonatal Dried Blood Spots Used for Epidemiologic Research.American journal of epidemiology · 2023Article
- Per- and polyfluoroalkyl substances (PFAS) and thyroid hormone measurements in dried blood spots and neonatal characteristics: a pilot study.Journal of exposure science & environmental epidemiology · 2023Article
- Cytomegalovirus proteins, maternal pregnancy cytokines, and their impact on neonatal immune cytokine profiles and acute lymphoblastic leukemogenesis in children.Haematologica · 2022Article
- Pre-Pregnancy Health Status and Risk of Preterm Birth: A Large, Chinese, Rural, Population-Based Study.Medical science monitor : international medical journal of experimental and clinical research · 2018Article
- Maternal perchlorate exposure in pregnancy and altered birth outcomes.Environmental research · 2017Article
- Prenatal Serum Concentrations of Brominated Flame Retardants and Autism Spectrum Disorder and Intellectual Disability in the Early Markers of Autism Study: A Population-Based Case-Control Study in California.Environmental health perspectives · 2017Article
- Neonatal Cytokine Profiles Associated With Autism Spectrum Disorder.Biological psychiatry · 2017Article
- Racial-ethnic differences in midtrimester maternal serum levels of angiogenic and antiangiogenic factors.American journal of obstetrics and gynecology · 2016Article
- Thyroid Hormones and Moderate Exposure to Perchlorate during Pregnancy in Women in Southern California.Environmental health perspectives · 2016Article
- Levels of cotinine in dried blood specimens from newborns as a biomarker of maternal smoking close to the time of delivery.American journal of epidemiology · 2013Article
Corrections and comments
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Authors and funding
15 authors at 9 institutions in 1 country.
Funding
Abstract
Very preterm birth (VPTB) is a leading cause of infant mortality, morbidity and racial disparity in the US. The underlying causes of VPTB are multiple and poorly understood. The California Very Preterm Birth Study was conducted to discover maternal and infant genetic and environmental factors associated with VPTB. This paper describes the study design, population, data and specimen collection, laboratory methods and characteristics of the study population. Using a large, population-based cohort created through record linkage of livebirths delivered from 2000 to 2007 in five counties of southern California, and existing data and banked specimens from statewide prenatal and newborn screening, 1100 VPTB cases and 796 control mother-infant pairs were selected for study (385/200 White, 385/253 Hispanic and 330/343 Black cases/controls, respectively). Medical record abstraction of cases was conducted at over 50 hospitals to identify spontaneous VPTB, improve accuracy of gestational age, obtain relevant clinical data and exclude cases that did not meet eligibility criteria. VPTB was defined as birth at <32 weeks in Whites and Hispanics and <34 weeks in Blacks. Approximately 55% of all VPTBs were spontaneous and 45% had medical indications or other exclusions. Of the spontaneous VPTBs, approximately 41% were reported to have chorioamnionitis. While the current focus of the California Very Preterm Birth Study is to assess the role of candidate genetic markers on spontaneous VPTB, its design enables the pursuit of other research opportunities to identify social, clinical and biological determinants of different types of VPTB with the ultimate aim of reducing infant mortality, morbidity and racial disparities in these health outcomes in the US and elsewhere.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.