Evidence map›Paper›PMID 22875713›Full record

ArticleThe American journal of clinical nutrition2012

Prospective cohort studies of vitamin B-6 intake and colorectal cancer incidence: modification by time?

Xuehong Zhang, Jung Eun Lee, Jing Ma, Youjin Je, Kana Wu, Walter C Willett, Charles S Fuchs, Edward L Giovannucci

Abstract read
In one paragraph

Article in The American journal of clinical nutrition, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
–field-weighted citation impact
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

10 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Dietary Reference Values for vitamin B6.EFSA journal. European Food Safety Authority · 2016
    Article
  6. Article
  7. Role of vitamins in gastrointestinal diseases.World journal of gastroenterology · 2015
    Review
  8. Article
  9. Review
  10. 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

8 authors.

Xuehong ZhangChanning Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA 02115, USA. xuehong.zhang@channing.harvard.edu
Jung Eun Lee
Jing Ma
Youjin Je
Kana Wu
Walter C Willett
Charles S Fuchs
Edward L Giovannucci

Funding

Statistical MethodsP01CA087969 · NCI · BRIGHAM AND WOMEN'S HOSPITAL · PI ROSNER, BERNARD A · 2000 to 2019
$77.8M
NCI NIH HHS CA55075NCI NIH HHS CA87969
6 · The paper itself

Abstract

backgroundThe relation between vitamin B-6 intake and colorectal cancer risk remains uncertain.

objectiveWe prospectively evaluated whether a higher vitamin B-6 intake in the remote past is more strongly associated with a lower risk of colorectal cancer than is an intake in the recent past in the Nurses' Health Study and the Health Professionals Follow-Up Study.

designWe assessed vitamin B-6 intake every 4 y by using validated food-frequency questionnaires and followed 86,440 women and 44,410 men for ≤28 y. Cox proportional hazards regression was used to estimate multivariable RRs and 95% CIs.

resultsThe total vitamin B-6 intake was significantly associated with an ∼20-30% lower risk of colorectal cancer in age-adjusted results, but this association became attenuated and nonsignificant after additional adjustment for nondietary and dietary factors. When the highest to lowest quintiles of cumulative total vitamin B-6 intake were compared, RRs (95% CIs) for colorectal cancer were 0.99 (0.80, 1.24; P-trend = 0.55) for women and 0.95 (0.73, 1.23; P-trend = 0.75) for men. For the same comparison, RRs were 0.92 (0.73, 1.16) for total vitamin B-6 intake 0-4 y before diagnosis, 0.99 (0.78, 1.26) for intake 4-8 y before diagnosis, 0.92 (0.71, 1.21) for intake 8-12 y before diagnosis, and 0.93 (0.69, 1.26) for intake 12-16 y before diagnosis in women. Corresponding RRs for men were 0.86 (0.63, 1.17), 0.96 (0.70, 1.32), 0.90 (0.63, 1.29), and 1.16 (0.75, 1.79). Results did not differ by cancer subsite, source of vitamin B-6 (food or supplement), alcohol consumption, or folate intake.

conclusionOur data do not support a strong role of adulthood vitamin B-6 intake in colorectal carcinogenesis in these US health professionals.

Indexed as

DietDietary SupplementsAdenocarcinomaAdultAgedCohort StudiesColorectal NeoplasmsFemaleFollow-Up StudiesHealth PersonnelHumansIncidenceMaleMiddle AgedNursesProportional Hazards ModelsVitamin B 6

Identifiers

PMID22875713
PMCPMC3441113

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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.