Evidence map›Paper›PMID 17521921›Full record

ArticleAnnals of epidemiology2007

Diet during pregnancy and risk of preeclampsia or gestational hypertension.

Emily Oken, Yi Ning, Sheryl L Rifas-Shiman, Janet W Rich-Edwards, Sjurdur F Olsen, Matthew W Gillman

Registry-linked trialOpen access · greenAbstract read
In one paragraph

Article in Annals of epidemiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02706158 (Testing the Effect of a Dietary Intervention Program on the Incidence of Pre-eclampsia in Women at Risk), which is not on this map. Cited by 78 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed, 7 pooled it
7.8field-weighted citation impact, top 3% 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.

NCT02706158 naunknown statusnot on this mapstarted 2016, after this paper: background citation

Testing the Effect of a Dietary Intervention Program on the Incidence of Pre-eclampsia in Women at Risk

TypeinterventionalSponsorRambam Health Care CampusRan2016 to 2018Enrolled120ConditionsPre-eclampsiaArms1500 mg Calcium and 1200 IU Vitamin D for 2 months, balanced diet
3 · Its place in the literature

Who cites it

78 citing papers in PubMed, 7 syntheses or guidelines pooled it, 172 citations in OpenAlex.

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18 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 3 institutions in 2 countries.

Emily OkenDepartment of Ambulatory Care and Prevention, Harvard Medical School and Harvard Pilgrim Health Care, Harvard School of Public Health, Boston, MA 02215, USA. emily_oken@harvardpilgrim.org
Yi Ning
Sheryl L Rifas-Shiman
Janet W Rich-Edwards
Sjurdur F Olsen
Matthew W Gillman
Statens Serum Institut · DKHarvard University · USHarvard Pilgrim Health Care · US

Funding

ROLE OF DIETARY CONSTITUENTS ON GENE EXPRESSION IN INTESTINAL EPITHELIUMP30DK040561 · NIDDK · MASSACHUSETTS GENERAL HOSPITAL · PI Takara Leah Stanley · 1994 to 2026
$31.6M
Prenatal environmental determinants of health in young adulthood: a lifecourse approachR01HD034568 · NICHD · HARVARD PILGRIM HEALTH CARE, INC. · PI Marie-France Hivert, Emily Oken · 1998 to 2026
$20.6M
NUTRITION IN PREGNANCY, BIRTH WEIGHT, &CHILDHOOD ASTHMAR01HL064925 · NHLBI · HARVARD PILGRIM HEALTH CARE, INC. · PI GILLMAN, MATTHEW W · 2000 to 2010
$7.5M
Pre- and Peri-natal Predictors of Childhood ObesityR37HD034568 · NICHD · HARVARD PILGRIM HEALTH CARE, INC. · PI GILLMAN, MATTHEW W · 2012 to 2015
$4.5M
Patient-oriented research in early life origins of CVDK24HL068041 · NHLBI · HARVARD PILGRIM HEALTH CARE, INC. · PI GILLMAN, MATTHEW W · 2001 to 2010
$1.4M
Maternal fatty acids, birth weight and child developmentK23HD044807 · NICHD · HARVARD PILGRIM HEALTH CARE, INC. · PI OKEN, EMILY · 2003 to 2007
$662k
NHLBI NIH HHS HL64925NHLBI NIH HHS HL68041NHLBI NIH HHS K24 HL068041NHLBI NIH HHS R01 HL064925NICHD NIH HHS HD34568NICHD NIH HHS HD44807NICHD NIH HHS K23 HD044807NICHD NIH HHS R01 HD034568NICHD NIH HHS R37 HD034568NIDDK NIH HHS P30 DK040561
6 · The paper itself

Abstract

purposeWe sought to examine associations of first-trimester intake of calcium, n-3 and n-6 fatty acids, trans fatty acids, magnesium, folate, and vitamins C, D, and E with preeclampsia (PE) and gestational hypertension (GH).

methodsWe studied associations of diet with PE or GH among 1718 women in the prospective cohort study Project Viva, using logistic regression and adjusting for maternal age, prepregnancy body mass index, first trimester systolic blood pressure, race/ethnicity, education, and parity. We assessed first-trimester diet using a validated semiquantitative food frequency questionnaire.

resultsA total of 59 (3%) women developed PE, and 119 developed (7%) GH. We found a somewhat-lower risk of PE associated with higher intake of the elongated n-3 fatty acids docosahexaenoic and eicosapentaenoic acids (odds ratio [OR] 0.84, 95% confidence interval [95% CI]: 0.69-1.03 per 100 mg/day), fish (OR 0.91, 95% CI 0.75-1.09 per serving/day), and the ratio of docosahexaenoic + eicosapentaenoic to arachadonic acid (OR 0.82, 95% CI 0.66-1.01). We did not observe a lower risk of GH or PE with a greater intake of calcium; vitamin C, D, or E; milk; magnesium; folate; or with lower intake of n-6 or trans fatty acids.

conclusionsOur results support a potential benefit for elongated n-3 fatty acids in preventing preeclampsia.

Indexed as

Dietary SupplementsDiet SurveysAdultFemaleHumansHypertension, Pregnancy-InducedMassachusettsPre-EclampsiaPregnancyPregnancy Trimester, FirstProspective StudiesRisk Assessment

Identifiers

PMID17521921
PMCPMC2532559
OpenAlexW1968031755

What OpenQuestion holds

Textmetadata
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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.