Evidence map›Paper›PMID 26169298›Full record

ArticleCancer causes & control : CCC2015

Intake of vitamins A, C, and E and folate and the risk of ovarian cancer in a pooled analysis of 10 cohort studies.

Anita Koushik, Molin Wang, Kristin E Anderson, Piet van den Brandt, Tess V Clendenen, A Heather Eliassen, Jo L Freudenheim, Jeanine M Genkinger, Niclas Håkansson, James R Marshall and 11 more

Open access · greenAbstract read
In one paragraph

Article in Cancer causes & control : CCC, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 3 pooled it
3.0field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 3 syntheses or guidelines pooled it, 34 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Article
  6. Review
  7. Review
  8. Review
  9. Review
  10. Scientific opinion on the tolerable upper intake level for folate.EFSA journal. European Food Safety Authority · 2023
    Article
  11. Folate Intake and Ovarian Cancer Risk among Women with Endometriosis: A Case-Control Study from the Ovarian Cancer Association Consortium.Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology · 2023
    Article
  12. Integrative Medicine for Ovarian Cancer.Current oncology reports · 2023
    Review
  13. Article
  14. Review
  15. Review
  16. Observational
  17. Ovarian cancer.Nature reviews. Disease primers · 2016
    Review
  18. Tocopherols in cancer: An update.Molecular nutrition & food research · 2016
    Review
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

21 authors at 14 institutions in 4 countries.

Anita KoushikCRCHUM (Centre de recherche du CHUM) and Department of Social and Preventive Medicine, Université de Montréal, 850 Saint-Denis Street, 2nd Floor, Montreal, QC, H2X 0A9, Canada, anita.koushik@umontreal.ca.
Molin Wang
Kristin E Anderson
Piet van den Brandt
Tess V Clendenen
A Heather Eliassen
Jo L Freudenheim
Jeanine M Genkinger
Niclas Håkansson
James R Marshall
Marjorie L McCullough
Anthony B Miller
Kim Robien
Thomas E Rohan
Catherine Schairer
Leo J Schouten
Shelley S Tworoger
Ying Wang
Alicja Wolk
Anne Zeleniuch-Jacquotte
Stephanie A Smith-Warner
Brigham and Women's Hospital · USAmerican Cancer Society · USKarolinska Institutet · SEMaastricht University · NLNew York University · USUniversity at Buffalo, State University of New York · USAlbert Einstein College of Medicine · USCentre Hospitalier de l’Université de Montréal · CAColumbia University · USGeorge Washington University · USHarvard University · USNational Cancer Institute · USPublic Health Ontario · CAUniversity of Minnesota · US

Funding

Validity of Diet and Activity Measures in WomenP01CA055075 · NCI · HARVARD UNIVERSITY (SCH OF PUBLIC HLTH) · PI RIMM, ERIC B · 1991 to 2009
$41.8M
The NYU Women's Health StudyUM1CA182934 · NCI · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI ZELENIUCH-JAQUOTTE, ANNE · 2015 to 2019
$3.7M
Canadian Institutes of Health ResearchNCI NIH HHS P01 CA055075NCI NIH HHS P01 CA55075NCI NIH HHS UM1 CA182934
6 · The paper itself

Abstract

purposeVitamins A, C, and E and folate have anticarcinogenic properties and thus might protect against cancer. Few known modifiable risk factors for ovarian cancer exist. We examined the associations between dietary and total (food and supplemental) vitamin intake and the risk of invasive epithelial ovarian cancer.

methodsThe primary data from 10 prospective cohort studies in North America and Europe were analyzed. Vitamin intakes were estimated from validated food frequency questionnaires in each study. Study-specific relative risks (RRs) were estimated using the Cox proportional hazards model and then combined using a random-effects model.

resultsAmong 501,857 women, 1,973 cases of ovarian cancer occurred over a median follow-up period of 7-16 years across studies. Dietary and total intakes of each vitamin were not significantly associated with ovarian cancer risk. The pooled multivariate RRs [95% confidence intervals (CIs)] for incremental increases in total intake of each vitamin were 1.02 (0.97-1.07) for vitamin A (increment: 1,300 mcg/day), 1.01 (0.99-1.04) for vitamin C (400 mg/day), 1.02 (0.97-1.06) for vitamin E (130 mg/day), and 1.01 (0.96-1.07) for folate (250 mcg/day). Multivitamin use (vs. nonuse) was not associated with ovarian cancer risk (pooled multivariate RR = 1.00, 95% CI 0.89-1.12). Associations did not vary substantially by study, or by subgroups of the population. Greater vitamin intakes were associated with modestly higher risks of endometrioid tumors (n = 156 cases), but not with other histological types.

conclusionThese results suggest that consumption of vitamins A, C, and E and folate during adulthood does not play a major role in ovarian cancer risk.

Indexed as

AdultAscorbic AcidCarcinoma, Ovarian EpithelialCohort StudiesDietary SupplementsEuropeFemaleFolic AcidHumansMiddle AgedNeoplasms, Glandular and EpithelialNorth AmericaOvarian NeoplasmsProspective StudiesRiskVitamin AAscorbic AcidFolic AcidVitamin AVitamin EVitamins

Identifiers

PMID26169298
PMCPMC4907363
OpenAlexW879794327

What OpenQuestion holds

Textmetadata
LicenceTDM
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.