Evidence map›Paper›PMID 21148240›Full record

ArticleAmerican journal of epidemiology2011

Effect of dietary fiber intake on lipoprotein cholesterol levels independent of estradiol in healthy premenopausal women.

Sunni L Mumford, Enrique F Schisterman, Anna Maria Siega-Riz, Audrey J Gaskins, Jean Wactawski-Wende, Tyler J VanderWeele

Open access · bronzeAbstract read
In one paragraph

Article in American journal of epidemiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 11% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  13. Lipid concentrations and couple fecundity: the LIFE study.The Journal of clinical endocrinology and metabolism · 2014
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 5 institutions in 1 country.

Sunni L MumfordEpidemiology Branch, Division of Epidemiology, Statistics and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Rockville, Maryland, USA.
Enrique F Schisterman
Anna Maria Siega-Riz
Audrey J Gaskins
Jean Wactawski-Wende
Tyler J VanderWeele
National Institutes of Health · USBuffalo State University · USEunice Kennedy Shriver National Institute of Child Health and Human Development · USHarvard University Press · USUniversity of North Carolina at Chapel Hill · US

Funding

Carolina Population CenterR24HD050924 · NICHD · UNIV OF NORTH CAROLINA CHAPEL HILL · PI MORGAN, SAMUEL PHILIP · 2005 to 2014
$10.0M
TRAINING GRANT IN ACADEMIC NUTRITIONT32DK007703 · NIDDK · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI CHRISTOPHER P DUGGAN, Frank B Hu · 1994 to 2026
$7.8M
ROC Curve MethodologyZIAHD008761 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI SCHISTERMAN, ENRIQUE F. · 2009 to 2021
$2.1M
Bounds for direct and indirect effects with application to perinatal epidemiologyR03HD060696 · NICHD · HARVARD SCHOOL OF PUBLIC HEALTH · PI VANDERWEELE, TYLER · 2010 to 2011
$169k
Intramural NIH HHSNICHD NIH HHS 1R03HD060696-01NICHD NIH HHS R03 HD060696NICHD NIH HHS R24 HD050924NIDDK NIH HHS T32 DK007703
6 · The paper itself

Abstract

High-fiber diets are associated with improved lipid profiles. However, pre- and postmenopausal women respond differently to fiber intake, suggesting that endogenous estradiol mediates the effect. The authors' objective was to determine the direct effect of fiber intake on lipoprotein cholesterol levels independent of estradiol among premenopausal women. The BioCycle Study, a prospective cohort study conducted at the State University of New York at Buffalo from 2005 to 2007, followed 259 healthy women for up to 2 complete menstrual cycles. Serum lipoprotein and hormone levels were measured at 16 visits timed using fertility monitors. Fiber intake was assessed by 8 24-hour recalls. Marginal structural models with inverse probability weights for both lipoprotein and estradiol levels were used to estimate controlled direct effects of the highest category of fiber intake (≥22 g/day vs. <22 g/day) while accounting for age, body mass index, total energy, vitamin E intake, physical activity, luteinizing hormone, follicle-stimulating hormone, and progesterone. Reductions were observed in total and low density lipoprotein cholesterol in women with higher fiber intakes. Direct effects were greater than total effects. These analyses suggested that estradiol mediates at least part of the association between fiber and cholesterol among premenopausal women. More research is needed to elucidate the biologic mechanisms driving these associations.

Indexed as

Menstrual CycleAdolescentAdultCholesterolDietary FiberEstradiolFemaleHumansLinear ModelsLipoproteinsProspective StudiesYoung AdultCholesterolDietary FiberEstradiollipoprotein cholesterolLipoproteins

Identifiers

PMID21148240
PMCPMC3290909
OpenAlexW2126561032

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.