Evidence map›Paper›PMID 32149329›Full record

SynthesisBioscience reports2020

Dietary vitamin A intake and the risk of ovarian cancer: a meta-analysis.

Qiaoqiao Wang, Chaying He

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Bioscience reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 20% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Review
  5. Non-self glycan structures as possible modulators of cancer progression: would polysaccharides from Cryptococcus spp. impact this phenomenon?Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2023
    Review
  6. Review
  7. Review
  8. Review
  9. The multifaceted role of reactive oxygen species in tumorigenesis.Cellular and molecular life sciences : CMLS · 2020
    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

2 authors at 1 institution in 1 country.

Qiaoqiao WangZhejiang University City College, No. 51, Huzhou Street, Hangzhou 310015, China.
Chaying HeHangzhou Women's Hospital, No. 369, Kun Peng Road, Shangcheng District, Hangzhou 310008, China.
Hangzhou Women’s Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies have demonstrated some associations between dietary vitamin A intake and ovarian cancer risk with an inconsistent relationship. We therefore performed the present study to further explore the association between them.

methodsDatabases of PubMed, Embase, and Web of Science were retrieved up to September 1, 2019. Summarized relative risk (RR) with corresponding 95% confidence intervals (CI) were calculated. Stata 14.0 software was used for data analysis.

resultsFifteen articles involving 4882 cases and 443,179 participants were included in this meta-analysis. A positive association between dietary vitamin A intake and ovarian cancer risk was found (RR = 0.816, 95%CI = 0.723-0.920, I2 = 48.4%, Pfor heterogeneity = 0.019). Significant association was also found in case-control studies (RR = 0.769, 95%CI = 0.655-0.902), but not in cohort studies. When we performed the analysis between ovarian cancer risk and geographic locations, we found an inverse association in North American populations (RR = 0.825, 95%CI = 0.720-0.946), instead of other populations.

conclusionsIn summary, findings from the present study suggested that higher dietary intake of vitamin A may contribute to the lower development of ovarian cancer, especially among North Americans.

Indexed as

Feeding BehaviorFemaleHumansNorth AmericaOvarian NeoplasmsRisk FactorsVitamin AVitamin ADietary intakeMeta-analysisOvarian cancerVitamin A

Identifiers

PMID32149329
PMCPMC7138903
OpenAlexW3010989629

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.