ArticleAnnals of epidemiology2014
Serum cotinine and whole blood folate concentrations in pregnancy.
Article in Annals of epidemiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00129324 (Neurobehavioral Effects of Prevalent Neurotoxicants in Children), which is not on this map. Cited by 9 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.
Neurobehavioral Effects of Prevalent Neurotoxicants in Children: A Cohort Study of the Cincinnati Center for Children's Environmental Health
Who cites it
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 13 citations in OpenAlex.
- Folate, vitamin B12, and homocysteine in smoking-exposed pregnant women: A systematic review.Maternal & child nutrition · 2019Pooled it
- Cumulative childhood lead exposure estimation and school-age IQ in a prospective birth cohort.Environmental health : a global access science source · 2025Article
- Phthalates and bisphenols early-life exposure, and childhood allergic conditions: a pooled analysis of cohort studies.Journal of exposure science & environmental epidemiology · 2025Article
- Associations of prenatal per- and polyfluoroalkyl substances with whole blood folate levels in pregnant women in the Health Outcomes and Measures of the Environment (HOME) Study.Environmental epidemiology (Philadelphia, Pa.) · 2025Article
- Association between serum cotinine concentrations on red blood cell folate concentrations in pregnant women and the mediating role of lymphocytes: an NHANES Study.Archives of public health = Archives belges de sante publique · 2025Article
- Simultaneous Determination of One-Carbon Folate Metabolites and One-Carbon-Related Amino Acids in Biological Samples Using a UHPLC-MS/MS Method.International journal of molecular sciences · 2024Article
- Combination effects of environmental tobacco smoke exposure and nutrients supplement during pregnancy on obesity in Chinese preschool children.Frontiers in pediatrics · 2024Article
- Maternal tobacco smoke exposure is associated with increased DNA methylation at human metastable epialleles in infant cord blood.Environmental epigenetics · 2022Article
- Low level arsenic contaminated water consumption and birth outcomes in Romania-An exploratory study.Reproductive toxicology (Elmsford, N.Y.) · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors at 5 institutions in 2 countries.
Funding
Abstract
purposePrenatal tobacco smoke exposure may be associated with low maternal folate levels that increase the risk of adverse infant and child health outcomes by reducing folate availability during fetal development.
methodsUsing data from the Health Outcomes and Measures of the Environment Study, we examined the relationship between secondhand or active tobacco smoke exposure and whole blood folate concentrations in pregnant women from Cincinnati, Ohio (n = 362) at approximately 16-week gestation. We used multivariable linear regression to examine the association between continuous or categorical serum cotinine levels and whole blood folate levels, adjusting for sociodemographic, dietary, and perinatal variables.
resultsAfter adjustment for potential confounders, an interquartile range increases in serum cotinine concentration (0.012-0.224 ng/mL) was suggestively associated with decreased whole blood folate levels (β, -23 nmol/L; 95% confidence interval (CI), -49, 3; P value = .08). Compared with unexposed women, reductions in mean whole blood folate were observed among active smokers (β, -94, 95% CI, 195, 6 nmol/L; P value = .40); smaller reductions were observed among women with secondhand exposure (β, 26; CI, 84, 32 nmol/L; P value = .07).
conclusionsConsistent with prior studies, active smoking was associated with reduced whole blood folate levels among these pregnant women. Secondhand tobacco smoke exposures were associated with small and imprecise reductions in whole blood folate levels.
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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.