Evidence map›Paper›PMID 25905583›Full record

SynthesisScientific reports2015

Association of vitamin C, vitamin D, vitamin E and risk of bladder cancer: a dose-response meta-analysis.

Fuqiang Chen, Qingshu Li, Yang Yu, Wenrong Yang, Fei Shi, Yan Qu

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in Scientific reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 6 pooled it
2.9field-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

26 citing papers in PubMed, 6 syntheses or guidelines pooled it, 50 citations in OpenAlex.

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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 2 institutions in 1 country.

Fuqiang ChenDepartment of Pain Management, Qingdao Municipal Hospital, Qingdao, China.
Qingshu LiIntensive Care Unit, Qingdao Municipal Hospital, Qingdao, China.
Yang YuDepartment of Pain Management, Qingdao Municipal Hospital, Qingdao, China.
Wenrong YangDepartment of Pain Management, Qingdao Municipal Hospital, Qingdao, China.
Fei ShiDepartment of Pain Management, Qingdao Municipal Hospital, Qingdao, China.
Yan QuIntensive Care Unit, Qingdao Municipal Hospital, Qingdao, China.
Qingdao Municipal Hospital · CNQingdao University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A dose-response meta-analysis was conducted to assess the association of vitamin C, D, E with risk of bladder cancer. Pertinent studies were identified in PubMed and Embase. The random-effect model was used. The relative risk (95% confidence interval) of bladder cancer was 0.99 (0.95-1.03) for every 100 IU/day increment in vitamin D from diet plus supplement and 0.95 (0.90-1.00) for every 10 nmol/L increment in circulating vitamin D. The effect for every 10 mg/day increment was 0.96 (0.90-1.02) for vitamin E from diet plus supplement, 0.83 (0.72-0.95) from diet and 0.88 (0.67-1.15) from supplement, and the effect was 0.84 (0.76-0.94) for every 1 mg/dL increment in circulating α-Tocopherol and 1.22 (1.00-1.49) for every 0.1 mg/dL increment in circulating γ-Tocopherol. The observed association for vitamin D and vitamin E was significant among smokers but not among non-smokers. No significant association was found between vitamin C and risk of bladder cancer in the dose-response analysis. Based on the dose-response analysis, the risk of bladder cancer might be inversely associated with vitamin D and E (especially α-Tocopherol), but positively associated with γ-Tocopherol.

Indexed as

alpha-TocopherolAscorbic AcidDatabases, FactualDietDietary SupplementsDose-Response Relationship, Druggamma-TocopherolHumansRiskSmokingUrinary Bladder NeoplasmsVitamin DVitamin Ealpha-TocopherolAscorbic Acidgamma-TocopherolVitamin DVitamin E

Identifiers

PMID25905583
PMCPMC5386108
OpenAlexW1993044790

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.