Evidence map›Paper›PMID 23441100›Full record

Trial reportCancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology2013

Using genetic proxies for lifecourse sun exposure to assess the causal relationship of sun exposure with circulating vitamin d and prostate cancer risk.

Carolina Bonilla, Rebecca Gilbert, John P Kemp, Nicholas J Timpson, David M Evans, Jenny L Donovan, Freddie C Hamdy, David E Neal, William D Fraser, Smith George Davey and 3 more

Open access · bronzeAbstract readComparative StudyMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 18% 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, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
  4. Article
  5. Article
  6. Article
  7. Review
  8. PCaLiStDB: a lifestyle database for precision prevention of prostate cancer.Database : the journal of biological databases and curation · 2020
    Article
  9. Article
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  15. Adding Mendelian randomization to a meta-analysis-a burgeoning opportunity.Tumour biology : the journal of the International Society for Oncodevelopmental Biology and Medicine · 2016
    Review
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  18. Article
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

13 authors at 6 institutions in 2 countries.

Carolina BonillaSchool of Social and Community Medicine, University of Bristol, Oakfield House, Oakfield Grove, Bristol BS8 2BN, United Kingdom.
Rebecca Gilbert
John P Kemp
Nicholas J Timpson
David M Evans
Jenny L Donovan
Freddie C Hamdy
David E Neal
William D Fraser
Smith George Davey
Sarah J Lewis
Mark Lathrop
Richard M Martin
University of East Anglia · GBMcGill University · CAUniversity of Bristol · GBUniversity of Oxford · GBMcGill University and Génome Québec Innovation Centre · CAUniversity of Cambridge · GB

Funding

Cancer Research UK A10095Cancer Research UK C31211/A10095Medical Research Council G0500966Medical Research Council G0500966/75466Medical Research Council G0600705Medical Research Council G0801462Medical Research Council G0900871
6 · The paper itself

Abstract

backgroundEcological and epidemiological studies have identified an inverse association of intensity and duration of sunlight exposure with prostate cancer, which may be explained by a reduction in vitamin D synthesis. Pigmentation traits influence sun exposure and therefore may affect prostate cancer risk. Because observational studies are vulnerable to confounding and measurement error, we used Mendelian randomization to examine the relationship of sun exposure with both prostate cancer risk and the intermediate phenotype, plasma levels of vitamin D.

methodsWe created a tanning, a skin color, and a freckling score as combinations of single nucleotide polymorphisms that have been previously associated with these phenotypes. A higher score indicates propensity to burn, have a lighter skin color and freckles. The scores were tested for association with vitamin D levels (25-hydroxyvitamin-D and 1,25-dihydroxyvitamin-D) and prostate-specific antigen detected prostate cancer in 3,123 White British individuals enrolled in the Prostate Testing for cancer and Treatment (ProtecT) study.

resultsThe freckling score was inversely associated with 25(OH)D levels [change in 25(OH)D per score unit -0.27; 95% CI, -0.52% to -0.01%], and the tanning score was positively associated with prostate cancer risk (OR = 1.05; 95% CI, 1.02-1.09), after adjustment for population stratification and potential confounders.

conclusionsIndividuals who tend to burn are more likely to spend less time in the sun and consequently have lower plasma vitamin D levels and higher susceptibility to prostate cancer. IMPACT: The use of pigmentation-related genetic scores is valuable for the assessment of the potential benefits of sun exposure with respect to prostate cancer risk.

Indexed as

AdolescentAdultAgedBiomarkers, TumorCase-Control StudiesChildChild, PreschoolGenetic Predisposition to DiseaseHumansMaleMiddle AgedNeoplasm GradingNeoplasm StagingPolymorphism, Single NucleotidePrognosisProstate-Specific AntigenBiomarkers, TumorProstate-Specific AntigenVitamin D

Identifiers

PMID23441100
PMCPMC3616836
OpenAlexW2170286028

What OpenQuestion holds

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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.